SEC Info℠  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Qualys, Inc. – ‘10-K’ for 12/31/23 – ‘EX-101.PRE’

On:  Thursday, 2/22/24, at 5:07pm ET   ·   For:  12/31/23   ·   Accession #:  1107843-24-8   ·   File #:  1-35662

Previous ‘10-K’:  ‘10-K’ on 2/23/23 for 12/31/22   ·   Latest ‘10-K’:  This Filing   ·   11 References:   

Find Words in Filings emoji
 		  in    Show  and   ↓Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

 2/22/24  Qualys, Inc.                      10-K       12/31/23  103:11M

Annual Report   —   Form 10-K   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.94M 
 2: EX-10.10    Material Contract                                   HTML     36K 
 3: EX-21.1     Subsidiaries List                                   HTML     32K 
 4: EX-23.1     Consent of Expert or Counsel                        HTML     28K 
 9: EX-97.1     Clawback Policy re: Recovery of Erroneously         HTML     48K 
                Awarded Compensation                                             
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     33K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     33K 
 7: EX-32.1     Certification -- §906 - SOA'02                      HTML     30K 
 8: EX-32.2     Certification -- §906 - SOA'02                      HTML     30K 
15: R1          Cover                                               HTML     95K 
16: R2          Audit Information                                   HTML     34K 
17: R3          Consolidated Balance Sheets                         HTML    142K 
18: R4          Consolidated Balance Sheets (Parenthetical)         HTML     52K 
19: R5          Consolidated Statements of Operations               HTML    110K 
20: R6          Consolidated Statements of Comprehensive Income     HTML     55K 
21: R7          Consolidated Statements of Cash Flows               HTML    126K 
22: R8          Consolidated Statements of Stockholders' Equity     HTML     96K 
23: R9          The Company and Summary of Significant Accounting   HTML     79K 
                Policies                                                         
24: R10         Fair Value of Financial Instruments                 HTML    214K 
25: R11         Accumulated Other Comprehensive Income (Loss)       HTML     74K 
26: R12         Property and Equipment, Net                         HTML     44K 
27: R13         Revenue from Contracts With Customers               HTML     58K 
28: R14         Acquisitions                                        HTML     33K 
29: R15         Intangible Assets, Net                              HTML     66K 
30: R16         Leases                                              HTML     69K 
31: R17         Commitment and Contingencies                        HTML     39K 
32: R18         Stockholders' Equity and Stock-based Compensation   HTML    117K 
33: R19         Employee Benefit Plan                               HTML     33K 
34: R20         Income Taxes                                        HTML    118K 
35: R21         Segment and Geographic Area Information             HTML     50K 
36: R22         Net Income Per Share                                HTML     57K 
37: R23         Pay vs Performance Disclosure                       HTML     41K 
38: R24         Insider Trading Arrangements                        HTML     48K 
39: R25         The Company and Summary of Significant Accounting   HTML    133K 
                Policies (Policies)                                              
40: R26         Fair Value of Financial Instruments (Tables)        HTML    215K 
41: R27         Accumulated Other Comprehensive Income (Loss)       HTML     76K 
                (Tables)                                                         
42: R28         Property and Equipment, Net (Tables)                HTML     41K 
43: R29         Revenue from Contracts With Customers (Tables)      HTML     53K 
44: R30         Intangible Assets, Net (Tables)                     HTML    101K 
45: R31         Leases (Tables)                                     HTML     52K 
46: R32         Commitment and Contingencies (Tables)               HTML     34K 
47: R33         Stockholders' Equity and Stock-based Compensation   HTML    100K 
                (Tables)                                                         
48: R34         Income Taxes (Tables)                               HTML    117K 
49: R35         Segment and Geographic Area Information (Tables)    HTML     46K 
50: R36         Net Income Per Share (Tables)                       HTML     59K 
51: R37         The Company and Summary of Significant Accounting   HTML     72K 
                Policies - Narrative (Details)                                   
52: R38         Fair Value of Financial Instruments - Fair Value    HTML     65K 
                Hierarchy (Details)                                              
53: R39         Fair Value of Financial Instruments - Cash and      HTML     81K 
                Cash Equivalents (Details)                                       
54: R40         Fair Value of Financial Instruments - Summary of    HTML     71K 
                Securities in Unrealized Loss Positions (Details)                
55: R41         Fair Value of Financial Instruments - Summary of    HTML     57K 
                the Fair Value of Marketable Securities (Details)                
56: R42         Fair Value of Financial Instruments - Narrative     HTML     44K 
                (Details)                                                        
57: R43         Fair Value of Financial Instruments - Summary of    HTML     37K 
                Derivative Financial Instruments (Details)                       
58: R44         Fair Value of Financial Instruments - Amounts       HTML     37K 
                Recognized In Statement of Operations (Details)                  
59: R45         Accumulated Other Comprehensive Income (Loss) -     HTML     57K 
                Accumulated Other Comprehensive Income (Loss)                    
                (Details)                                                        
60: R46         Accumulated Other Comprehensive Income (Loss) -     HTML     71K 
                Amounts Reclassified from AOCI (Details)                         
61: R47         Property and Equipment, Net - Schedule of Property  HTML     48K 
                and Equipment, Net (Details)                                     
62: R48         Property and Equipment, Net - Narrative (Details)   HTML     39K 
63: R49         Revenue from Contracts With Customers - Narrative   HTML     37K 
                (Details)                                                        
64: R50         Revenue from Contracts with Customers - Expected    HTML     48K 
                Revenue from All Remaining Performance Obligations               
                (Details)                                                        
65: R51         Revenue from Contracts With Customers - Revenue by  HTML     39K 
                Sales Channel (Details)                                          
66: R52         Revenue from Contracts With Customers -             HTML     33K 
                Capitalized Cost to Obtain Contracts, Current and                
                Noncurrent (Details)                                             
67: R53         Acquisitions (Details)                              HTML     61K 
68: R54         Intangible Assets, Net - Carrying Value of          HTML     55K 
                Intangible Assets (Details)                                      
69: R55         Intangible Assets, Net (Details)                    HTML     31K 
70: R56         Intangible Assets, Net - Expected Amortization      HTML     40K 
                Expense in Future Periods (Details)                              
71: R57         Leases - Narrative (Details)                        HTML     30K 
72: R58         Leases - Supplemental Cash Flow Information         HTML     33K 
                (Details)                                                        
73: R59         Leases - Weighted Average Remaining Lease Term and  HTML     33K 
                Weighted Average Discount Rate (Details)                         
74: R60         Leases - Minimum Annual Lease Payments (Details)    HTML     49K 
75: R61         Commitment and Contingencies - Remaining Purchase   HTML     38K 
                Commitments (Details)                                            
76: R62         Stockholders' Equity and Stock-based Compensation   HTML     39K 
                - Preferred Stock (Details)                                      
77: R63         Stockholders' Equity and Stock-based Compensation   HTML     73K 
                - Equity Incentive Plan (Details)                                
78: R64         Stockholders' Equity and Stock-based Compensation   HTML     49K 
                - Summary of Stock-based Compensation Expense                    
                (Details)                                                        
79: R65         Stockholders' Equity and Stock-based Compensation   HTML     60K 
                - Stock-based Compensation (Details)                             
80: R66         Stockholders' Equity and Stock-based Compensation   HTML    137K 
                - Performance-Based Stock Options and Restricted                 
                Stock Units (Details)                                            
81: R67         Stockholders' Equity and Stock-based Compensation   HTML     54K 
                - Fair Value Assumptions, Stock Options (Details)                
82: R68         Stockholders' Equity and Stock-based Compensation   HTML     83K 
                - Share-based Compensation and Stock Options                     
                Activity (Details)                                               
83: R69         Stockholders' Equity and Stock-based Compensation   HTML     80K 
                - Summary of Restricted Stock Unit Activity                      
                (Details)                                                        
84: R70         Stockholders' Equity and Stock-based Compensation   HTML     45K 
                - Narrative (Details)                                            
85: R71         Stockholders' Equity and Stock-based Compensation   HTML     56K 
                - Employee Stock Purchase Plan, Valuation                        
                Assumptions (Details)                                            
86: R72         Stockholders' Equity and Stock-based Compensation   HTML     31K 
                - Schedule of Repurchase Agreements (Details)                    
87: R73         Stockholders' Equity and Stock-based Compensation   HTML     54K 
                - Share Repurchase Program (Details)                             
88: R74         Employee Benefit Plan (Details)                     HTML     32K 
89: R75         Income Taxes - Schedule of Income before Income     HTML     38K 
                Tax, Domestic and Foreign (Details)                              
90: R76         Income Taxes - Schedule of Components of Income     HTML     57K 
                Tax Expense (Benefit) (Details)                                  
91: R77         Income Taxes - Schedule of Effective Income Tax     HTML     54K 
                Rate Reconciliation (Details)                                    
92: R78         Income Taxes - Schedule of Deferred Tax Assets and  HTML     67K 
                Liabilities (Details)                                            
93: R79         Income Taxes - Narrative (Details)                  HTML     39K 
94: R80         Income Taxes - Schedule of Unrecognized Tax         HTML     41K 
                Benefits Roll Forward (Details)                                  
95: R81         Segment and Geographic Area Information -           HTML     33K 
                Narrative (Details)                                              
96: R82         Segment and Geographic Area Information - Revenue   HTML     45K 
                and Property and Equipment, Net by Geographic Area               
                (Details)                                                        
97: R83         Net Income Per Share - Basic and Diluted Net        HTML     72K 
                Income Per Share (Details)                                       
98: R84         Net Income Per Share - Anti-dilutive Net Income     HTML     39K 
                Per Share (Details)                                              
100: XML         IDEA XML File -- Filing Summary                      XML    186K  
103: XML         XBRL Instance -- qlys-20231231_htm                   XML   2.44M  
99: EXCEL       IDEA Workbook of Financial Report Info              XLSX    195K 
11: EX-101.CAL  XBRL Calculations -- qlys-20231231_cal               XML    281K 
12: EX-101.DEF  XBRL Definitions -- qlys-20231231_def                XML    589K 
13: EX-101.LAB  XBRL Labels -- qlys-20231231_lab                     XML   2.13M 
14: EX-101.PRE  XBRL Presentations -- qlys-20231231_pre              XML   1.25M 
10: EX-101.SCH  XBRL Schema -- qlys-20231231                         XSD    174K 
101: JSON        XBRL Instance as JSON Data -- MetaLinks              590±   905K  
102: ZIP         XBRL Zipped Folder -- 0001107843-24-000008-xbrl      Zip    891K

‘EX-101.PRE’   —   XBRL Presentations — qlys-20231231_pre

This Exhibit is an XBRL File.

                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with the Workiva Platform -->
<!-- Copyright 2024 Workiva -->
<!-- r:f4ea1f53-8015-46e0-94c5-3054ac171407,g:ad08069b-edd9-4caa-93e6-69d8513fda7d -->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<link:roleRef roleURI="http://www.qualys.com/role/Cover" xlink:type="simple" xlink:href="qlys-20231231.xsd#Cover"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/Cover" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CoverAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_4d489338-60ed-4ace-be0a-b5dc557b5544" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentType"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentType_4d489338-60ed-4ace-be0a-b5dc557b5544" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentAnnualReport_0f051d62-4de6-477d-bcc8-c5152c3ade7d" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentAnnualReport"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentAnnualReport_0f051d62-4de6-477d-bcc8-c5152c3ade7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_09f93fb7-d4f0-49c7-95f9-215334f03e17" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentPeriodEndDate"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentPeriodEndDate_09f93fb7-d4f0-49c7-95f9-215334f03e17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_f2fb1903-b75e-49e3-bcdc-6dec5427364e" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CurrentFiscalYearEndDate"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_CurrentFiscalYearEndDate_f2fb1903-b75e-49e3-bcdc-6dec5427364e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_5833aacb-517b-4c0a-a470-b78aecc0d933" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentTransitionReport"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentTransitionReport_5833aacb-517b-4c0a-a470-b78aecc0d933" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_1750c5bb-98aa-42c4-99e5-f6cf0c136acc" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFileNumber"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityFileNumber_1750c5bb-98aa-42c4-99e5-f6cf0c136acc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_3ff488f0-202c-413b-b0e3-f3c8d9ddaa27" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityRegistrantName"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityRegistrantName_3ff488f0-202c-413b-b0e3-f3c8d9ddaa27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_7bae1e53-b055-4018-8b5d-d4c67f6b6a41" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityIncorporationStateCountryCode"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityIncorporationStateCountryCode_7bae1e53-b055-4018-8b5d-d4c67f6b6a41" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_7bd3b7f6-ba12-4923-a321-5194a43b0c1c" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityTaxIdentificationNumber"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityTaxIdentificationNumber_7bd3b7f6-ba12-4923-a321-5194a43b0c1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_f0a280e1-4e2d-4f5d-86bc-b925803ca64d" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine1"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityAddressAddressLine1_f0a280e1-4e2d-4f5d-86bc-b925803ca64d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_1a936a1f-85ef-4ffc-af6e-a65f5b41841a" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityAddressCityOrTown_1a936a1f-85ef-4ffc-af6e-a65f5b41841a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_c39b6c84-20d8-4c45-be43-456fffb3df9b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityAddressStateOrProvince_c39b6c84-20d8-4c45-be43-456fffb3df9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_11a99c0b-18de-43e4-9784-7b7bff8271bd" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityAddressPostalZipCode_11a99c0b-18de-43e4-9784-7b7bff8271bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_0f85b61a-4359-4dee-8047-2a669407fd6b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode"/>
<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_CityAreaCode_0f85b61a-4359-4dee-8047-2a669407fd6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_ab795532-fa55-4a6a-8586-499cb7546e68" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber"/>
<link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_LocalPhoneNumber_ab795532-fa55-4a6a-8586-499cb7546e68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_7daa9d40-d625-45dc-a185-2fb8b8f2161c" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle"/>
<link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_Security12bTitle_7daa9d40-d625-45dc-a185-2fb8b8f2161c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_4ec6c4aa-e967-4351-ad6f-a5a61f2a8194" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_TradingSymbol"/>
<link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_TradingSymbol_4ec6c4aa-e967-4351-ad6f-a5a61f2a8194" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_1df55237-5088-4dbd-9de2-b9ecda68da21" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityExchangeName"/>
<link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_SecurityExchangeName_1df55237-5088-4dbd-9de2-b9ecda68da21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_d3ef2705-0c6c-4820-bbc0-02aca7c03e01" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityWellKnownSeasonedIssuer"/>
<link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_d3ef2705-0c6c-4820-bbc0-02aca7c03e01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityVoluntaryFilers_3f9818dd-c7f6-4769-854d-0cf82e2f903a" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityVoluntaryFilers"/>
<link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityVoluntaryFilers_3f9818dd-c7f6-4769-854d-0cf82e2f903a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_6892ca69-ebd3-4951-8f80-71ce517726b5" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCurrentReportingStatus"/>
<link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityCurrentReportingStatus_6892ca69-ebd3-4951-8f80-71ce517726b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_6288c6fe-cb57-4aa1-9e36-73ed61c6ca54" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityInteractiveDataCurrent"/>
<link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityInteractiveDataCurrent_6288c6fe-cb57-4aa1-9e36-73ed61c6ca54" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_43395b8b-2c6a-48e6-9c06-b55705e1eb35" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFilerCategory"/>
<link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityFilerCategory_43395b8b-2c6a-48e6-9c06-b55705e1eb35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_ae1aef20-16ca-47c2-8801-884f87490022" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntitySmallBusiness"/>
<link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntitySmallBusiness_ae1aef20-16ca-47c2-8801-884f87490022" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_165419ad-a51f-4a7f-97c1-063acd3c2ed1" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityEmergingGrowthCompany"/>
<link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityEmergingGrowthCompany_165419ad-a51f-4a7f-97c1-063acd3c2ed1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_IcfrAuditorAttestationFlag_14416280-641b-4316-b0bc-6fc800905a63" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_IcfrAuditorAttestationFlag"/>
<link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_IcfrAuditorAttestationFlag_14416280-641b-4316-b0bc-6fc800905a63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag_a22fefa5-3a98-469b-b407-9e38da4016e7" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentFinStmtErrorCorrectionFlag"/>
<link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentFinStmtErrorCorrectionFlag_a22fefa5-3a98-469b-b407-9e38da4016e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_9003dde8-1841-4bce-be35-a04fcb646744" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityShellCompany"/>
<link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityShellCompany_9003dde8-1841-4bce-be35-a04fcb646744" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityPublicFloat_0ce3205c-ca50-4245-8632-dc56d183c06d" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityPublicFloat"/>
<link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityPublicFloat_0ce3205c-ca50-4245-8632-dc56d183c06d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_ef7a4a73-e9ff-4ec2-8a20-c76e4c363abf" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCommonStockSharesOutstanding"/>
<link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_ef7a4a73-e9ff-4ec2-8a20-c76e4c363abf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentsIncorporatedByReferenceTextBlock_774fa834-1cc7-44db-a885-d9552b3a3b4c" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentsIncorporatedByReferenceTextBlock"/>
<link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentsIncorporatedByReferenceTextBlock_774fa834-1cc7-44db-a885-d9552b3a3b4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_6404e06d-a51e-42f9-b3aa-0116d2c95a10" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCentralIndexKey"/>
<link:presentationArc order="32" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_EntityCentralIndexKey_6404e06d-a51e-42f9-b3aa-0116d2c95a10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_f3218998-58f9-4165-900d-b2c23c612725" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentFiscalYearFocus"/>
<link:presentationArc order="33" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentFiscalYearFocus_f3218998-58f9-4165-900d-b2c23c612725" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_87bb9410-e578-4e6d-86c6-cee66b7d44a2" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentFiscalPeriodFocus"/>
<link:presentationArc order="34" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_DocumentFiscalPeriodFocus_87bb9410-e578-4e6d-86c6-cee66b7d44a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_2fda3295-62d7-412c-b1b5-4b2e24e47785" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AmendmentFlag"/>
<link:presentationArc order="35" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_002155be-c6c2-4a28-b203-62e98713ec5b" xlink:to="loc_dei_AmendmentFlag_2fda3295-62d7-412c-b1b5-4b2e24e47785" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/AuditInformation" xlink:type="simple" xlink:href="qlys-20231231.xsd#AuditInformation"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/AuditInformation" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_qlys_AuditorInformationAbstract_3334da6c-188b-43d3-85c1-9f682f804c51" xlink:href="qlys-20231231.xsd#qlys_AuditorInformationAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_AuditorFirmId_04c8e99e-be42-4502-95f3-cc63f31d98f3" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AuditorFirmId"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_qlys_AuditorInformationAbstract_3334da6c-188b-43d3-85c1-9f682f804c51" xlink:to="loc_dei_AuditorFirmId_04c8e99e-be42-4502-95f3-cc63f31d98f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_AuditorName_01baa651-aa63-4af3-b454-3aa59b75b4aa" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AuditorName"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_qlys_AuditorInformationAbstract_3334da6c-188b-43d3-85c1-9f682f804c51" xlink:to="loc_dei_AuditorName_01baa651-aa63-4af3-b454-3aa59b75b4aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_dei_AuditorLocation_c8467992-895a-4e5f-a0ce-f0e4c57d30a3" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AuditorLocation"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_qlys_AuditorInformationAbstract_3334da6c-188b-43d3-85c1-9f682f804c51" xlink:to="loc_dei_AuditorLocation_c8467992-895a-4e5f-a0ce-f0e4c57d30a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="qlys-20231231.xsd#ConsolidatedBalanceSheets"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_6298ef43-6a3b-449e-a632-a941118935f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_6298ef43-6a3b-449e-a632-a941118935f5" xlink:to="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrentAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_13ed0d00-9eaa-45bd-bc47-43cdf48bf382" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_13ed0d00-9eaa-45bd-bc47-43cdf48bf382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_fb781335-6ca3-429a-bc9a-0c17849758ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashCurrent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:to="loc_us-gaap_RestrictedCashCurrent_fb781335-6ca3-429a-bc9a-0c17849758ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_4fa8f9a0-aed9-41fe-b662-508d70bd89be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_4fa8f9a0-aed9-41fe-b662-508d70bd89be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_320b18d1-a174-43fa-9321-56125a5585db" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNetCurrent"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_320b18d1-a174-43fa-9321-56125a5585db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_dfdb1510-6af0-4dba-97d0-08debc756e7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_dfdb1510-6af0-4dba-97d0-08debc756e7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_f024f419-0a5a-4d4a-85c5-6ac663a414ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_d0ad2a32-5611-47b9-904b-8e484df2c10a" xlink:to="loc_us-gaap_AssetsCurrent_f024f419-0a5a-4d4a-85c5-6ac663a414ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_c7451e4a-6974-4ec2-8cc1-d01a1465d6a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_c7451e4a-6974-4ec2-8cc1-d01a1465d6a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_29df3802-d8fb-45e2-b4f3-d384440710d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_29df3802-d8fb-45e2-b4f3-d384440710d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_8086a772-9b2c-476f-a9cc-46846adfbaeb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_8086a772-9b2c-476f-a9cc-46846adfbaeb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_b2b672c9-97bf-498c-85ea-631a4c7f3ac5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_b2b672c9-97bf-498c-85ea-631a4c7f3ac5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_a1125250-7fac-4b31-b3e6-91d9ea947444" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_a1125250-7fac-4b31-b3e6-91d9ea947444" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_a4f32b3a-7d3b-4c4e-9667-bc5f565567e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_Goodwill_a4f32b3a-7d3b-4c4e-9667-bc5f565567e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_e39b594b-b71f-40ad-a0d0-bb6929bea3ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_e39b594b-b71f-40ad-a0d0-bb6929bea3ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_14646a38-5fd6-4918-b64a-6a5cac0fef6e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrent"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_14646a38-5fd6-4918-b64a-6a5cac0fef6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_7af1728f-875e-446a-8697-9397e38613b7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_34c68347-1798-43e6-ab80-0032c30b78f9" xlink:to="loc_us-gaap_Assets_7af1728f-875e-446a-8697-9397e38613b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_6298ef43-6a3b-449e-a632-a941118935f5" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_75bd5741-28f0-491e-ae8a-be704632c29f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrent"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:to="loc_us-gaap_AccountsPayableCurrent_75bd5741-28f0-491e-ae8a-be704632c29f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_1862c728-2eb0-4659-9eae-2cbb887ff5db" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_1862c728-2eb0-4659-9eae-2cbb887ff5db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_143ac609-0124-4369-b487-3b18d30760b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_143ac609-0124-4369-b487-3b18d30760b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_d81e4469-1738-481b-957e-e2de49b6b11b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_d81e4469-1738-481b-957e-e2de49b6b11b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_c9abd5d2-7e57-4f74-9025-22a192ff51de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a7a07c4f-cf28-45d5-9826-501387911234" xlink:to="loc_us-gaap_LiabilitiesCurrent_c9abd5d2-7e57-4f74-9025-22a192ff51de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_5f54ea20-141a-462f-a79e-04e1831eabb0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_5f54ea20-141a-462f-a79e-04e1831eabb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_d23f4d35-c617-435f-ba73-a3f82ddfacfb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_d23f4d35-c617-435f-ba73-a3f82ddfacfb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_ae736627-b974-4fa2-99ac-216914006855" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_ae736627-b974-4fa2-99ac-216914006855" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_6f152d24-4a1a-414b-9141-0e374becac4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_Liabilities_6f152d24-4a1a-414b-9141-0e374becac4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_c83d446c-dfe2-40d7-9f60-2b031b4b77b7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingencies"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_CommitmentsAndContingencies_c83d446c-dfe2-40d7-9f60-2b031b4b77b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityAbstract"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_a66e9b66-aab5-417a-9b11-f2c175d6fe60" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:to="loc_us-gaap_PreferredStockValue_a66e9b66-aab5-417a-9b11-f2c175d6fe60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_daf81b2f-f59e-410a-8894-aa0ba735f653" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:to="loc_us-gaap_CommonStockValue_daf81b2f-f59e-410a-8894-aa0ba735f653" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_e1aaa6c1-4077-41f6-973d-4f22b5174106" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:to="loc_us-gaap_AdditionalPaidInCapital_e1aaa6c1-4077-41f6-973d-4f22b5174106" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_2f793fad-9f35-4751-92de-88bae76be043" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_2f793fad-9f35-4751-92de-88bae76be043" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_44970933-2c7a-4cf2-95e3-b564a69b3248" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_44970933-2c7a-4cf2-95e3-b564a69b3248" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_0b7f3f9d-acc8-4d50-b688-8a11a3286daf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_bb18f9f5-43da-4a49-9787-f1affb6a1edd" xlink:to="loc_us-gaap_StockholdersEquity_0b7f3f9d-acc8-4d50-b688-8a11a3286daf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_1aa0c8f9-e7b3-4e8f-83f6-c37db688528e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_297641ed-55ea-4f1a-a98c-029e8b97435e" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_1aa0c8f9-e7b3-4e8f-83f6-c37db688528e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" xlink:href="qlys-20231231.xsd#ConsolidatedBalanceSheetsParenthetical"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_015dd8e6-d3f6-41f7-b898-b1a6287b0b34" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_015dd8e6-d3f6-41f7-b898-b1a6287b0b34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_9b435efc-5c0f-43af-a036-74d847013cad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_9b435efc-5c0f-43af-a036-74d847013cad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_b209da48-16ce-403a-9ea1-f2f9bbff0577" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_b209da48-16ce-403a-9ea1-f2f9bbff0577" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_45fad4d6-ab27-4230-9b06-02624b737682" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_PreferredStockSharesIssued_45fad4d6-ab27-4230-9b06-02624b737682" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_d04c16b9-fb62-489f-959f-3ff849f87815" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_d04c16b9-fb62-489f-959f-3ff849f87815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_4affb3b8-91ee-461d-ac6d-1d0ea1ebc6e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_4affb3b8-91ee-461d-ac6d-1d0ea1ebc6e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_132627cb-0519-478c-a22d-bd133f757ef1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_132627cb-0519-478c-a22d-bd133f757ef1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_7abf6ea4-dffc-4571-bd81-2dcefa371229" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_CommonStockSharesIssued_7abf6ea4-dffc-4571-bd81-2dcefa371229" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_3be2aafe-2d03-4c94-be42-f25abb5ec187" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_e6dc83da-28a1-4e08-b7d9-b0a4a30eaa89" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_3be2aafe-2d03-4c94-be42-f25abb5ec187" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/ConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="qlys-20231231.xsd#ConsolidatedStatementsofOperations"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/ConsolidatedStatementsofOperations" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5aab64f4-52ea-465c-b09c-d027a48c530a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_5aab64f4-52ea-465c-b09c-d027a48c530a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_1059c5bf-072a-4bae-8b65-ab9206e28f35" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfRevenue"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_CostOfRevenue_1059c5bf-072a-4bae-8b65-ab9206e28f35" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_c13a9b68-a11b-4245-8aab-ab899b7f6e78" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_GrossProfit_c13a9b68-a11b-4245-8aab-ab899b7f6e78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_4364cc8c-8318-42d4-90eb-9cec4e8412ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpensesAbstract"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_OperatingExpensesAbstract_4364cc8c-8318-42d4-90eb-9cec4e8412ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_9f4e18e1-c120-4db8-a5de-b82a8e5eda6c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_4364cc8c-8318-42d4-90eb-9cec4e8412ce" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_9f4e18e1-c120-4db8-a5de-b82a8e5eda6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_6c9e598a-d4fb-49b3-a840-f544db4f8e54" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingAndMarketingExpense"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_4364cc8c-8318-42d4-90eb-9cec4e8412ce" xlink:to="loc_us-gaap_SellingAndMarketingExpense_6c9e598a-d4fb-49b3-a840-f544db4f8e54" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_cef45217-c83c-4f90-8893-94d506e60adc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_4364cc8c-8318-42d4-90eb-9cec4e8412ce" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_cef45217-c83c-4f90-8893-94d506e60adc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_c46d0c39-0fa6-4c65-b7ce-ea4b5d90c071" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_4364cc8c-8318-42d4-90eb-9cec4e8412ce" xlink:to="loc_us-gaap_OperatingExpenses_c46d0c39-0fa6-4c65-b7ce-ea4b5d90c071" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_c9a93025-82df-4e9b-a9d8-803c4001285a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_OperatingIncomeLoss_c9a93025-82df-4e9b-a9d8-803c4001285a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_ada8a3bb-a85b-4604-8f1d-2080d8a8332f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_ada8a3bb-a85b-4604-8f1d-2080d8a8332f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_c38749a3-ddf2-4ebb-a6d1-3b3a9cece2d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeInterest"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_ada8a3bb-a85b-4604-8f1d-2080d8a8332f" xlink:to="loc_us-gaap_InvestmentIncomeInterest_c38749a3-ddf2-4ebb-a6d1-3b3a9cece2d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_08b83c8b-d210-441c-9117-e12450696498" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_ada8a3bb-a85b-4604-8f1d-2080d8a8332f" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_08b83c8b-d210-441c-9117-e12450696498" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_7c675eeb-2bda-4e52-bab4-c3d3e3d73461" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_ada8a3bb-a85b-4604-8f1d-2080d8a8332f" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_7c675eeb-2bda-4e52-bab4-c3d3e3d73461" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_e39087f1-624f-4216-8332-fbb9a1dd181e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_e39087f1-624f-4216-8332-fbb9a1dd181e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_c1fc8d07-1481-498f-8ca6-28b5bc89cb90" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_c1fc8d07-1481-498f-8ca6-28b5bc89cb90" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5d04fd84-dc73-4c92-b64b-a442ce396e18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_NetIncomeLoss_5d04fd84-dc73-4c92-b64b-a442ce396e18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_2c1620dc-2054-4859-a5b8-8b751ba50c27" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_EarningsPerShareAbstract_2c1620dc-2054-4859-a5b8-8b751ba50c27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_9af916b7-8604-4762-9be4-3e1d511e2e82" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareBasic"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2c1620dc-2054-4859-a5b8-8b751ba50c27" xlink:to="loc_us-gaap_EarningsPerShareBasic_9af916b7-8604-4762-9be4-3e1d511e2e82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_856b49e4-5030-44ce-a7a8-d3dbfe1941d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareDiluted"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2c1620dc-2054-4859-a5b8-8b751ba50c27" xlink:to="loc_us-gaap_EarningsPerShareDiluted_856b49e4-5030-44ce-a7a8-d3dbfe1941d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_44822662-88b6-483f-863b-69add8f182ca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_9a1558bb-5a73-4c2e-8729-8fcf6aa71164" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_44822662-88b6-483f-863b-69add8f182ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_46f804a1-a6ab-4519-8e01-9c4c8309c0f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_44822662-88b6-483f-863b-69add8f182ca" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_46f804a1-a6ab-4519-8e01-9c4c8309c0f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_5689a482-999b-4e32-8e3b-087f3513cb6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_44822662-88b6-483f-863b-69add8f182ca" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_5689a482-999b-4e32-8e3b-087f3513cb6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="simple" xlink:href="qlys-20231231.xsd#ConsolidatedStatementsofComprehensiveIncome"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/ConsolidatedStatementsofComprehensiveIncome" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_f2617e06-5be7-4ad1-aebf-be23d1b2c8bc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_4fce90e1-2c0d-4a7a-8c2c-19f5d2e1ba2b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_f2617e06-5be7-4ad1-aebf-be23d1b2c8bc" xlink:to="loc_us-gaap_NetIncomeLoss_4fce90e1-2c0d-4a7a-8c2c-19f5d2e1ba2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxAttributableToParentAbstract_c053053b-f477-4567-a6e2-e3eae43c4204" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxAttributableToParentAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_f2617e06-5be7-4ad1-aebf-be23d1b2c8bc" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxAttributableToParentAbstract_c053053b-f477-4567-a6e2-e3eae43c4204" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_d2e27aa7-c671-4d0f-8824-bd90f77ee9e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxAttributableToParentAbstract_c053053b-f477-4567-a6e2-e3eae43c4204" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_d2e27aa7-c671-4d0f-8824-bd90f77ee9e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_577a5340-f456-4da4-8ee1-b059cd9f87dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxAttributableToParentAbstract_c053053b-f477-4567-a6e2-e3eae43c4204" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_577a5340-f456-4da4-8ee1-b059cd9f87dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_889a801f-ad61-455b-8473-15bf5576554a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxAttributableToParentAbstract_c053053b-f477-4567-a6e2-e3eae43c4204" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_889a801f-ad61-455b-8473-15bf5576554a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_df253c39-764b-4101-b89a-1bf4e34d5291" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_f2617e06-5be7-4ad1-aebf-be23d1b2c8bc" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_df253c39-764b-4101-b89a-1bf4e34d5291" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="qlys-20231231.xsd#ConsolidatedStatementsofCashFlows"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_efb01329-453c-48aa-93a0-d3f507b83942" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_efb01329-453c-48aa-93a0-d3f507b83942" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_7b15151c-7c6a-4503-bf42-ede3d59c6482" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_efb01329-453c-48aa-93a0-d3f507b83942" xlink:to="loc_us-gaap_NetIncomeLoss_7b15151c-7c6a-4503-bf42-ede3d59c6482" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_efb01329-453c-48aa-93a0-d3f507b83942" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_60efbdb2-7e64-4372-83bc-da3b63968fd7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_60efbdb2-7e64-4372-83bc-da3b63968fd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetImpairmentCharges_30f5a270-338a-49c5-83e1-091f67c49e10" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetImpairmentCharges"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_OtherAssetImpairmentCharges_30f5a270-338a-49c5-83e1-091f67c49e10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_a619d725-39f9-4384-86e2-11c1909ff597" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_a619d725-39f9-4384-86e2-11c1909ff597" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_6572d469-0d9a-4658-b230-2a68be8f1cf3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_6572d469-0d9a-4658-b230-2a68be8f1cf3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_cc750045-c618-4472-9b8a-8b45154bbfc5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_cc750045-c618-4472-9b8a-8b45154bbfc5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_0271a782-bea6-47a5-9fb6-4931ddfe75aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_ShareBasedCompensation_0271a782-bea6-47a5-9fb6-4931ddfe75aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_8a3b8353-24b1-47ac-980a-7ccdb2918253" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_8a3b8353-24b1-47ac-980a-7ccdb2918253" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_b0bba4de-63bc-4ad6-ae16-f44ea32cca0d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_b0bba4de-63bc-4ad6-ae16-f44ea32cca0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_156f3394-515b-42ff-b495-bc272a8b5abf" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_ca834c02-acfd-4ad4-a5a5-f4d8e49fb932" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_ca834c02-acfd-4ad4-a5a5-f4d8e49fb932" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_a1087448-83c0-4f8a-80a7-8011301fac26" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_a1087448-83c0-4f8a-80a7-8011301fac26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_7975b3b7-add5-4d4d-9403-81b8c2804889" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_7975b3b7-add5-4d4d-9403-81b8c2804889" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_0695471a-2730-4321-8b68-25a18711ef12" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_0695471a-2730-4321-8b68-25a18711ef12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_8d2103f2-f69c-4f5e-9206-9efce53d948e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_f3c02893-9b0d-4bad-9b4e-5740970d70b4" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_8d2103f2-f69c-4f5e-9206-9efce53d948e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f522f640-37e8-4cd9-99e0-d538125ae718" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_efb01329-453c-48aa-93a0-d3f507b83942" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f522f640-37e8-4cd9-99e0-d538125ae718" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_55c0872c-b19a-4528-8713-f3bb03ce3dc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_55c0872c-b19a-4528-8713-f3bb03ce3dc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_283c6514-fdd9-40fa-94a5-1e45c20aa6b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_283c6514-fdd9-40fa-94a5-1e45c20aa6b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_108fae9b-1727-4e47-be18-773508f28d7a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_108fae9b-1727-4e47-be18-773508f28d7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_9f8950ac-9bf3-4803-b90d-71c1b1df5fff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_9f8950ac-9bf3-4803-b90d-71c1b1df5fff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_273503b7-1de2-463f-af8f-f170cdd7923c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_273503b7-1de2-463f-af8f-f170cdd7923c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PaymentsToAcquireMaturitiesOfNotesReceivable_0dcf22f5-7779-4251-a581-518cf9670170" xlink:href="qlys-20231231.xsd#qlys_PaymentsToAcquireMaturitiesOfNotesReceivable"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_qlys_PaymentsToAcquireMaturitiesOfNotesReceivable_0dcf22f5-7779-4251-a581-518cf9670170" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9a2436f6-5176-4361-8c53-489731875671" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_03b8fa20-82d3-4ec5-a93b-e810400d281f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_9a2436f6-5176-4361-8c53-489731875671" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_d0ab7f92-ecd4-4363-a01c-5e76833d5ee1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_d0ab7f92-ecd4-4363-a01c-5e76833d5ee1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_327992a4-f69b-44d5-9690-8fd2f2f46cb5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_327992a4-f69b-44d5-9690-8fd2f2f46cb5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_2460ba7f-f8e2-4599-ae04-1edf7ec6d8a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_2460ba7f-f8e2-4599-ae04-1edf7ec6d8a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_43a23bb2-5c4f-4a3d-afbf-29162f2a67c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_43a23bb2-5c4f-4a3d-afbf-29162f2a67c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_e08e9eb4-613c-41d9-9014-0e796bc3627c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_e08e9eb4-613c-41d9-9014-0e796bc3627c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_88516db0-e66b-44c8-9d5b-3a95b6908791" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_a0e1c8cb-43ca-4487-8dc3-9419bb7c054f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_88516db0-e66b-44c8-9d5b-3a95b6908791" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_710a26cb-f07d-415d-afd0-699c08e8823d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_710a26cb-f07d-415d-afd0-699c08e8823d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_5c31142c-d2d2-4fa6-a993-acf050c651e8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_5c31142c-d2d2-4fa6-a993-acf050c651e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_51b89d6d-38a6-461d-b18b-4d2eccf5b417" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_51b89d6d-38a6-461d-b18b-4d2eccf5b417" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_5d63836f-03e4-48f2-8c99-fd6ca73a83a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_5d63836f-03e4-48f2-8c99-fd6ca73a83a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_274526c6-1c87-4fad-b47c-aaf267b4e2ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesPaidNet"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_5d63836f-03e4-48f2-8c99-fd6ca73a83a6" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_274526c6-1c87-4fad-b47c-aaf267b4e2ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_44b502c3-27b8-403d-8655-37e6e378d238" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_1f8893eb-6b4e-4f3c-831c-ce154e59fe93" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_44b502c3-27b8-403d-8655-37e6e378d238" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1_0e35bcef-d550-4d02-b366-21f35f364843" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_44b502c3-27b8-403d-8655-37e6e378d238" xlink:to="loc_us-gaap_NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1_0e35bcef-d550-4d02-b366-21f35f364843" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_862b4386-aad9-4242-af85-0ec42ba54ef7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_44b502c3-27b8-403d-8655-37e6e378d238" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_862b4386-aad9-4242-af85-0ec42ba54ef7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/ConsolidatedStatementsofStockholdersEquity" xlink:type="simple" xlink:href="qlys-20231231.xsd#ConsolidatedStatementsofStockholdersEquity"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/ConsolidatedStatementsofStockholdersEquity" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_3298a58a-9d8d-4373-8345-b485ad84de50" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_c90c6ef2-e194-466e-ae30-905d9cb2d423" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_3298a58a-9d8d-4373-8345-b485ad84de50" xlink:to="loc_us-gaap_StatementTable_c90c6ef2-e194-466e-ae30-905d9cb2d423" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_ed461016-cef5-4443-8b1e-748a0b528ed2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_c90c6ef2-e194-466e-ae30-905d9cb2d423" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_ed461016-cef5-4443-8b1e-748a0b528ed2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_32ad43b1-4c0a-4bf8-a7aa-4a9783bc510a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_ed461016-cef5-4443-8b1e-748a0b528ed2" xlink:to="loc_us-gaap_EquityComponentDomain_32ad43b1-4c0a-4bf8-a7aa-4a9783bc510a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_6f62ac97-3eb6-46b8-b160-af76b98c95d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_32ad43b1-4c0a-4bf8-a7aa-4a9783bc510a" xlink:to="loc_us-gaap_CommonStockMember_6f62ac97-3eb6-46b8-b160-af76b98c95d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_2261c709-954c-42e8-8339-1e0dcd287cf8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_32ad43b1-4c0a-4bf8-a7aa-4a9783bc510a" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_2261c709-954c-42e8-8339-1e0dcd287cf8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_b2a6334f-fdf5-4851-bc5b-95829e82f441" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_32ad43b1-4c0a-4bf8-a7aa-4a9783bc510a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_b2a6334f-fdf5-4851-bc5b-95829e82f441" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_5153253e-c9fd-495e-bb67-c86085d34887" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_32ad43b1-4c0a-4bf8-a7aa-4a9783bc510a" xlink:to="loc_us-gaap_RetainedEarningsMember_5153253e-c9fd-495e-bb67-c86085d34887" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_ebe5e4d7-a349-48f2-b38b-d40b6cd55ac8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_c90c6ef2-e194-466e-ae30-905d9cb2d423" xlink:to="loc_us-gaap_StatementLineItems_ebe5e4d7-a349-48f2-b38b-d40b6cd55ac8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_ebe5e4d7-a349-48f2-b38b-d40b6cd55ac8" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_be251cbe-46f6-4d26-83dc-9e0116d421c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesOutstanding"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_SharesOutstanding_be251cbe-46f6-4d26-83dc-9e0116d421c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_7d1f1d6b-a79f-4731-8df9-c7ee883ed7d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockholdersEquity_7d1f1d6b-a79f-4731-8df9-c7ee883ed7d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_699de1cc-6a13-43a7-b239-f5fff9d2c80d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_NetIncomeLoss_699de1cc-6a13-43a7-b239-f5fff9d2c80d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_6d7f7829-42cf-4f28-84c9-11cb694e5a56" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_6d7f7829-42cf-4f28-84c9-11cb694e5a56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_21b5c68f-d08f-4511-9e72-b14a524e5a91" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_21b5c68f-d08f-4511-9e72-b14a524e5a91" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_13757b21-df24-42d8-bc8c-e9908959f8ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_13757b21-df24-42d8-bc8c-e9908959f8ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_9a7dd28c-ec0c-4e16-9992-65be198c193a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_9a7dd28c-ec0c-4e16-9992-65be198c193a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_bb166b45-468a-4e95-8fc9-c010fe15abff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_bb166b45-468a-4e95-8fc9-c010fe15abff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_StockIssuedDuringPeriodSharesRestrictedStockAwardVested_0fd16c3e-2860-40f9-b3e3-ac39f25b34af" xlink:href="qlys-20231231.xsd#qlys_StockIssuedDuringPeriodSharesRestrictedStockAwardVested"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_qlys_StockIssuedDuringPeriodSharesRestrictedStockAwardVested_0fd16c3e-2860-40f9-b3e3-ac39f25b34af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_dab199f3-e7da-4f3a-b848-7029d31ee435" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_dab199f3-e7da-4f3a-b848-7029d31ee435" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_eae337f4-7d70-4edd-818f-f3e6d449cef3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_eae337f4-7d70-4edd-818f-f3e6d449cef3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_38f2d018-180e-4b1b-b4d3-96517a1940da" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_38f2d018-180e-4b1b-b4d3-96517a1940da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_f4efd4bd-905d-4bc8-9f51-8116d0e8bdba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_f4efd4bd-905d-4bc8-9f51-8116d0e8bdba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_cbfa7100-d4ff-4126-8308-432d38482b3d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_cbfa7100-d4ff-4126-8308-432d38482b3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_63460251-dcba-411e-ae95-fad012fb1727" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesOutstanding"/>
<link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_SharesOutstanding_63460251-dcba-411e-ae95-fad012fb1727" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_4dc033c5-6c97-47d8-8c5d-cfca56f2df81" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
<link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd9c1dd9-3500-4955-b106-6e83bd15caae" xlink:to="loc_us-gaap_StockholdersEquity_4dc033c5-6c97-47d8-8c5d-cfca56f2df81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/TheCompanyandSummaryofSignificantAccountingPolicies" xlink:type="simple" xlink:href="qlys-20231231.xsd#TheCompanyandSummaryofSignificantAccountingPolicies"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/TheCompanyandSummaryofSignificantAccountingPolicies" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_c0167228-e6a5-4889-834a-b41b9d20652c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock_2ec9de68-51d1-40a1-864f-4512dcb4402c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_c0167228-e6a5-4889-834a-b41b9d20652c" xlink:to="loc_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock_2ec9de68-51d1-40a1-864f-4512dcb4402c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstruments" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstruments"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstruments" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_2568aa92-598f-4acb-87fd-bd04c3990299" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_5026340a-b52d-4b70-98f6-4d2c707fba5d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_2568aa92-598f-4acb-87fd-bd04c3990299" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_5026340a-b52d-4b70-98f6-4d2c707fba5d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLoss" xlink:type="simple" xlink:href="qlys-20231231.xsd#AccumulatedOtherComprehensiveIncomeLoss"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLoss" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_45064848-7722-44f7-be2b-ee7bd9372eeb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_899e0783-a7a0-445f-ab9c-13d004fea09e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_45064848-7722-44f7-be2b-ee7bd9372eeb" xlink:to="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_899e0783-a7a0-445f-ab9c-13d004fea09e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/PropertyandEquipmentNet" xlink:type="simple" xlink:href="qlys-20231231.xsd#PropertyandEquipmentNet"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/PropertyandEquipmentNet" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_0104ff2c-399e-469f-9613-30542ddd7597" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_8c3c463a-2a5c-42bc-809e-30bd86f237db" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_0104ff2c-399e-469f-9613-30542ddd7597" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_8c3c463a-2a5c-42bc-809e-30bd86f237db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractsWithCustomers" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractsWithCustomers"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractsWithCustomers" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_64a51ebc-ac74-45b2-964b-0853d854084d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_25fd9715-8195-460e-a931-2f7df8517be6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_64a51ebc-ac74-45b2-964b-0853d854084d" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_25fd9715-8195-460e-a931-2f7df8517be6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/Acquisitions" xlink:type="simple" xlink:href="qlys-20231231.xsd#Acquisitions"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/Acquisitions" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_b50a142f-e1c6-4ff9-81a6-7652bc949638" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTextBlock_151e549e-bbb9-49e3-ab0d-4c4d1c1ee6cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_b50a142f-e1c6-4ff9-81a6-7652bc949638" xlink:to="loc_us-gaap_AssetAcquisitionTextBlock_151e549e-bbb9-49e3-ab0d-4c4d1c1ee6cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IntangibleAssetsNet" xlink:type="simple" xlink:href="qlys-20231231.xsd#IntangibleAssetsNet"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IntangibleAssetsNet" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_a589c3b0-7b3c-498a-8fd9-f7400c26dc1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_85b46c74-01cb-4fe8-bbb1-8d137c0261eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_a589c3b0-7b3c-498a-8fd9-f7400c26dc1e" xlink:to="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_85b46c74-01cb-4fe8-bbb1-8d137c0261eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/Leases" xlink:type="simple" xlink:href="qlys-20231231.xsd#Leases"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/Leases" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_a928f714-5a60-4ff4-84ac-398d1cadc16c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeasesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeasesTextBlock_3e3a942f-879f-4f82-afbb-9290468d84d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeasesTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_a928f714-5a60-4ff4-84ac-398d1cadc16c" xlink:to="loc_us-gaap_LesseeOperatingLeasesTextBlock_3e3a942f-879f-4f82-afbb-9290468d84d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeasesTextBlock_310e469e-36ae-4556-a802-08335daa010e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeFinanceLeasesTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_a928f714-5a60-4ff4-84ac-398d1cadc16c" xlink:to="loc_us-gaap_LesseeFinanceLeasesTextBlock_310e469e-36ae-4556-a802-08335daa010e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/CommitmentandContingencies" xlink:type="simple" xlink:href="qlys-20231231.xsd#CommitmentandContingencies"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/CommitmentandContingencies" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_0fc6aeb9-cb75-4491-b18c-1a3efa357cc6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_165563de-9e30-445c-9605-db6f58779501" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_0fc6aeb9-cb75-4491-b18c-1a3efa357cc6" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_165563de-9e30-445c-9605-db6f58779501" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensation" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensation"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensation" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_cf219451-c3b6-400d-8465-02a0f74c1a89" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_c9bfc0b7-9d63-42ca-add0-32a7e063c64a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_cf219451-c3b6-400d-8465-02a0f74c1a89" xlink:to="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_c9bfc0b7-9d63-42ca-add0-32a7e063c64a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/EmployeeBenefitPlan" xlink:type="simple" xlink:href="qlys-20231231.xsd#EmployeeBenefitPlan"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/EmployeeBenefitPlan" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b12df8be-fd40-491a-b0a4-054d37b0b96e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndEmployeeBenefitPlansTextBlock_4ffccf4e-ff4e-47f3-9f54-dcfd22ad88c7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CompensationAndEmployeeBenefitPlansTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_b12df8be-fd40-491a-b0a4-054d37b0b96e" xlink:to="loc_us-gaap_CompensationAndEmployeeBenefitPlansTextBlock_4ffccf4e-ff4e-47f3-9f54-dcfd22ad88c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxes" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxes"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxes" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_7aaf3a73-830b-4467-81a1-b1b7a7d54c35" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_165979c9-d04d-48e2-a400-0f804ddc022a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_7aaf3a73-830b-4467-81a1-b1b7a7d54c35" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_165979c9-d04d-48e2-a400-0f804ddc022a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/SegmentandGeographicAreaInformation" xlink:type="simple" xlink:href="qlys-20231231.xsd#SegmentandGeographicAreaInformation"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/SegmentandGeographicAreaInformation" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_bc1d3f48-2610-43ab-92e6-085793decacf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_86868221-065d-4475-9f02-9ff0d1e42fc6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_bc1d3f48-2610-43ab-92e6-085793decacf" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_86868221-065d-4475-9f02-9ff0d1e42fc6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/NetIncomePerShare" xlink:type="simple" xlink:href="qlys-20231231.xsd#NetIncomePerShare"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/NetIncomePerShare" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_139fa56f-4ac6-4f7c-811a-0e6aaf3b4cc2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_197047aa-a703-4ebc-b79b-9918fda31637" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_139fa56f-4ac6-4f7c-811a-0e6aaf3b4cc2" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_197047aa-a703-4ebc-b79b-9918fda31637" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="qlys-20231231.xsd#TheCompanyandSummaryofSignificantAccountingPoliciesPolicies"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_DescriptionOfBusinessPolicyPolicyTextBlock_a6cdb5bd-a7b2-43e6-b0d0-8babd2231c6b" xlink:href="qlys-20231231.xsd#qlys_DescriptionOfBusinessPolicyPolicyTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_qlys_DescriptionOfBusinessPolicyPolicyTextBlock_a6cdb5bd-a7b2-43e6-b0d0-8babd2231c6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_ede57bf5-a7eb-4dc9-a1b4-fe5a1e2e397f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_ede57bf5-a7eb-4dc9-a1b4-fe5a1e2e397f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates_f4e08504-7a9f-4aef-8fea-5104e74b241a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UseOfEstimates"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_UseOfEstimates_f4e08504-7a9f-4aef-8fea-5104e74b241a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_85f932bf-c18c-4426-9dbe-f7ba09186a71" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskCreditRisk"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_85f932bf-c18c-4426-9dbe-f7ba09186a71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_CashCashEquivalentsAndShorttermAndLongtermInvestmentsPolicyPolicyTextBlock_87f63336-a6ad-4abf-bd8a-608146233f2f" xlink:href="qlys-20231231.xsd#qlys_CashCashEquivalentsAndShorttermAndLongtermInvestmentsPolicyPolicyTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_qlys_CashCashEquivalentsAndShorttermAndLongtermInvestmentsPolicyPolicyTextBlock_87f63336-a6ad-4abf-bd8a-608146233f2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_f9932626-c160-4ea8-8146-58b00964a7c0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_f9932626-c160-4ea8-8146-58b00964a7c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesOwnedNotReadilyMarketablePolicy_547e0106-f3d9-4d15-bfa1-55db65231020" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuritiesOwnedNotReadilyMarketablePolicy"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_SecuritiesOwnedNotReadilyMarketablePolicy_547e0106-f3d9-4d15-bfa1-55db65231020" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_301ec400-ab30-4f41-8b9d-88d838592d22" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_301ec400-ab30-4f41-8b9d-88d838592d22" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock_c18bf1aa-7ee5-405c-96bf-5e97f87e6c9b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeLeasesPolicyTextBlock"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_LesseeLeasesPolicyTextBlock_c18bf1aa-7ee5-405c-96bf-5e97f87e6c9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_f5888642-03a9-415c-8e3e-3e37527a6cef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_f5888642-03a9-415c-8e3e-3e37527a6cef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_c9105047-ad68-470f-a866-2eda8983f809" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_c9105047-ad68-470f-a866-2eda8983f809" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetAcquisitionsPolicyTextBlock_a4c0aab5-09a9-41b4-a76d-38edd919e940" xlink:href="qlys-20231231.xsd#qlys_AssetAcquisitionsPolicyTextBlock"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_qlys_AssetAcquisitionsPolicyTextBlock_a4c0aab5-09a9-41b4-a76d-38edd919e940" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsPolicy_932f84b1-612f-40c1-bd5b-9f9052974d52" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationsPolicy"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_BusinessCombinationsPolicy_932f84b1-612f-40c1-bd5b-9f9052974d52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesReportingOfDerivativeActivity_6cac2349-0a9b-442b-bdfd-df43c2442118" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativesReportingOfDerivativeActivity"/>
<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_DerivativesReportingOfDerivativeActivity_6cac2349-0a9b-442b-bdfd-df43c2442118" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4e7b09cd-daef-4dcb-8590-3727fe4b6bb3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
<link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4e7b09cd-daef-4dcb-8590-3727fe4b6bb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock_f0b0797a-9440-499c-a6b1-8d29edb5e685" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRecognitionPolicyTextBlock"/>
<link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_RevenueRecognitionPolicyTextBlock_f0b0797a-9440-499c-a6b1-8d29edb5e685" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingCostsPolicyTextBlock_023c3371-6660-4a80-a2b6-8b0e279c1500" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdvertisingCostsPolicyTextBlock"/>
<link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_AdvertisingCostsPolicyTextBlock_023c3371-6660-4a80-a2b6-8b0e279c1500" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_1f34d324-0d0c-48d6-b823-a7400fd3215f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxPolicyTextBlock"/>
<link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_1f34d324-0d0c-48d6-b823-a7400fd3215f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_f5f0e799-242a-4249-b058-871463a9d631" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock"/>
<link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_f5f0e799-242a-4249-b058-871463a9d631" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_0d78e744-8362-46a5-b7b2-9e9a7acdeeca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock"/>
<link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_0d78e744-8362-46a5-b7b2-9e9a7acdeeca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_99c77359-af69-492f-b59d-a27a6395f667" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
<link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_99c77359-af69-492f-b59d-a27a6395f667" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_f6c737d5-b03a-4493-8b06-e4b1ab9a252a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
<link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_4ad796af-3b04-48f6-82c2-651991dbab16" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_f6c737d5-b03a-4493-8b06-e4b1ab9a252a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_0e71aa33-680b-40a5-af0e-56eb7c21e696" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_0e71aa33-680b-40a5-af0e-56eb7c21e696" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_CashAndCashEquivalentsAndDebtSecuritiesAvailableforsaleAmortizedCostToFairValueTableTextBlock_51546c0d-1a05-4135-83fb-d096838839ac" xlink:href="qlys-20231231.xsd#qlys_CashAndCashEquivalentsAndDebtSecuritiesAvailableforsaleAmortizedCostToFairValueTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:to="loc_qlys_CashAndCashEquivalentsAndDebtSecuritiesAvailableforsaleAmortizedCostToFairValueTableTextBlock_51546c0d-1a05-4135-83fb-d096838839ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock_29fade30-7c87-4d3b-9040-26194887a25b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock_29fade30-7c87-4d3b-9040-26194887a25b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_57e4208d-d081-4bf2-864a-eea6ea41d72c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:to="loc_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_57e4208d-d081-4bf2-864a-eea6ea41d72c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_9effef48-cab1-44fd-82cd-fffbf491aa1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDerivativeInstrumentsTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_9effef48-cab1-44fd-82cd-fffbf491aa1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_46ff97fc-debc-45ff-979d-25997d5869c7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_b2340e54-5ad4-4256-948a-d68b6a219c16" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_46ff97fc-debc-45ff-979d-25997d5869c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#AccumulatedOtherComprehensiveIncomeLossTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_6da74d8f-a86c-413a-9da0-a8210246a533" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_bcf72e9f-3b8c-4e0e-baa4-f3e0184113db" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6da74d8f-a86c-413a-9da0-a8210246a533" xlink:to="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_bcf72e9f-3b8c-4e0e-baa4-f3e0184113db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_b7c11413-9987-4409-b08b-7156a4290e72" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6da74d8f-a86c-413a-9da0-a8210246a533" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_b7c11413-9987-4409-b08b-7156a4290e72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/PropertyandEquipmentNetTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#PropertyandEquipmentNetTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/PropertyandEquipmentNetTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_662d94b6-0909-44e1-ab83-ea7c8a40efc0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_daf9236d-49ea-439a-be99-e46a686b8b7a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_662d94b6-0909-44e1-ab83-ea7c8a40efc0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_daf9236d-49ea-439a-be99-e46a686b8b7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractsWithCustomersTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractsWithCustomersTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractsWithCustomersTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_b93a1587-c90e-4b01-aceb-6eb102855345" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock_6fa37b58-f667-4e07-9cd0-2c29af689df9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_b93a1587-c90e-4b01-aceb-6eb102855345" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock_6fa37b58-f667-4e07-9cd0-2c29af689df9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_438f1d68-4741-4580-8aa7-a10dfd3a95f2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_b93a1587-c90e-4b01-aceb-6eb102855345" xlink:to="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_438f1d68-4741-4580-8aa7-a10dfd3a95f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostTableTextBlock_eb099de5-22dd-4edd-853c-55b3596a3d7b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostTableTextBlock"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_b93a1587-c90e-4b01-aceb-6eb102855345" xlink:to="loc_us-gaap_CapitalizedContractCostTableTextBlock_eb099de5-22dd-4edd-853c-55b3596a3d7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IntangibleAssetsNetTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#IntangibleAssetsNetTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IntangibleAssetsNetTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_26d4464c-ef48-4c68-938a-4c69ccb4f001" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock_0722839b-b5fb-4482-9269-e7536ad8001f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_26d4464c-ef48-4c68-938a-4c69ccb4f001" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetsByMajorClassTextBlock_0722839b-b5fb-4482-9269-e7536ad8001f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredIndefiniteLivedIntangibleAssetsByMajorClassTextBlock_0bd12cb5-5f4e-41f8-aaeb-4f8cd6c06f5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAcquiredIndefiniteLivedIntangibleAssetsByMajorClassTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_26d4464c-ef48-4c68-938a-4c69ccb4f001" xlink:to="loc_us-gaap_ScheduleOfAcquiredIndefiniteLivedIntangibleAssetsByMajorClassTextBlock_0bd12cb5-5f4e-41f8-aaeb-4f8cd6c06f5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_9f48c824-2551-412e-af10-df9a36f7d204" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_26d4464c-ef48-4c68-938a-4c69ccb4f001" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_9f48c824-2551-412e-af10-df9a36f7d204" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/LeasesTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#LeasesTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/LeasesTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_da57f3ad-7a8c-4201-9936-4a0c023b1818" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeasesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostTableTextBlock_7fc8538f-6129-4630-a698-ece81ac70134" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseCostTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_da57f3ad-7a8c-4201-9936-4a0c023b1818" xlink:to="loc_us-gaap_LeaseCostTableTextBlock_7fc8538f-6129-4630-a698-ece81ac70134" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetsAndLiabilitiesLesseeTableTextBlock_0d4fce66-21d8-4acd-9443-3c7d95a9b295" xlink:href="qlys-20231231.xsd#qlys_AssetsAndLiabilitiesLesseeTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_da57f3ad-7a8c-4201-9936-4a0c023b1818" xlink:to="loc_qlys_AssetsAndLiabilitiesLesseeTableTextBlock_0d4fce66-21d8-4acd-9443-3c7d95a9b295" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_a8e6794c-b7c6-4bbc-85fd-772181878350" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_da57f3ad-7a8c-4201-9936-4a0c023b1818" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_a8e6794c-b7c6-4bbc-85fd-772181878350" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/CommitmentandContingenciesTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#CommitmentandContingenciesTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/CommitmentandContingenciesTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_d9e202b8-7303-42b0-a659-a5a67f4889e8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_9986f8cf-b875-41cf-806a-294eb06e8be7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_d9e202b8-7303-42b0-a659-a5a67f4889e8" xlink:to="loc_srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_9986f8cf-b875-41cf-806a-294eb06e8be7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_048a37f8-f68c-4b13-9d16-82a2ee0a56de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_048a37f8-f68c-4b13-9d16-82a2ee0a56de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_4d9f0359-6ad2-4411-b733-f84e0ab41798" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_4d9f0359-6ad2-4411-b733-f84e0ab41798" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_5b32dc13-c125-47fd-b795-5306dabd9004" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_5b32dc13-c125-47fd-b795-5306dabd9004" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_ccc54cee-616c-40c3-9750-88a2ba0d4a20" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:to="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_ccc54cee-616c-40c3-9750-88a2ba0d4a20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_d67f902c-30b8-4f18-afe5-aaa97a387ca7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_d67f902c-30b8-4f18-afe5-aaa97a387ca7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareRepurchaseProgramTableTextBlock_4e8cf2a3-cf7e-479e-8888-5bef240b7149" xlink:href="qlys-20231231.xsd#qlys_ShareRepurchaseProgramTableTextBlock"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_4f67416b-78a1-4955-b6ac-5e4f7f8a6a46" xlink:to="loc_qlys_ShareRepurchaseProgramTableTextBlock_4e8cf2a3-cf7e-479e-8888-5bef240b7149" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_803bc6bb-0703-41c3-9909-0777f95b9b58" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_48ffd998-f686-4af8-8a48-e71c0eff1773" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_803bc6bb-0703-41c3-9909-0777f95b9b58" xlink:to="loc_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_48ffd998-f686-4af8-8a48-e71c0eff1773" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_501de5d2-c96c-4bfa-a2fc-bcd57aea06f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_803bc6bb-0703-41c3-9909-0777f95b9b58" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_501de5d2-c96c-4bfa-a2fc-bcd57aea06f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_6fdada83-a35e-4982-9b77-766a32a44ecd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_803bc6bb-0703-41c3-9909-0777f95b9b58" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_6fdada83-a35e-4982-9b77-766a32a44ecd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_de8785dd-018d-41f5-b690-eef4f1c09c33" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_803bc6bb-0703-41c3-9909-0777f95b9b58" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_de8785dd-018d-41f5-b690-eef4f1c09c33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_9de7e0ab-0c83-4dc6-8efc-ed961fbd6b2e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_803bc6bb-0703-41c3-9909-0777f95b9b58" xlink:to="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_9de7e0ab-0c83-4dc6-8efc-ed961fbd6b2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/SegmentandGeographicAreaInformationTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#SegmentandGeographicAreaInformationTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/SegmentandGeographicAreaInformationTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_a1bf0865-bb36-450c-adb9-e070768dd1de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock_cfd53dcb-b870-47a2-b2f3-7e963ab63aaf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_a1bf0865-bb36-450c-adb9-e070768dd1de" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock_cfd53dcb-b870-47a2-b2f3-7e963ab63aaf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/NetIncomePerShareTables" xlink:type="simple" xlink:href="qlys-20231231.xsd#NetIncomePerShareTables"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/NetIncomePerShareTables" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_be75cc35-70e3-4ca2-9ffe-e6823902bf55" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_50512afc-b21e-448a-ab93-d2b344e2a9eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_be75cc35-70e3-4ca2-9ffe-e6823902bf55" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_50512afc-b21e-448a-ab93-d2b344e2a9eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_20fc9e5c-0376-4201-bf0a-b26fa0097140" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_be75cc35-70e3-4ca2-9ffe-e6823902bf55" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_20fc9e5c-0376-4201-bf0a-b26fa0097140" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_8bad304c-1c27-4d0d-be5f-dafeebc978d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_8bad304c-1c27-4d0d-be5f-dafeebc978d7" xlink:to="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis_42e2cfc9-9a21-4869-99c8-71c89f85f950" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis_42e2cfc9-9a21-4869-99c8-71c89f85f950" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_e890b0f2-610a-465e-8996-6a0ec9b053ab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis_42e2cfc9-9a21-4869-99c8-71c89f85f950" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_e890b0f2-610a-465e-8996-6a0ec9b053ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_CashHeldInEscrowWithBlueHexagonAcquisitionMember_d81e63c1-1933-440b-870c-4e80ba22ee31" xlink:href="qlys-20231231.xsd#qlys_CashHeldInEscrowWithBlueHexagonAcquisitionMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_e890b0f2-610a-465e-8996-6a0ec9b053ab" xlink:to="loc_qlys_CashHeldInEscrowWithBlueHexagonAcquisitionMember_d81e63c1-1933-440b-870c-4e80ba22ee31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SecurityDepositsMember_adeaff66-b2d3-48cb-a547-e45c5aca67d4" xlink:href="qlys-20231231.xsd#qlys_SecurityDepositsMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_e890b0f2-610a-465e-8996-6a0ec9b053ab" xlink:to="loc_qlys_SecurityDepositsMember_adeaff66-b2d3-48cb-a547-e45c5aca67d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PledgingPurposeAxis_24ac6396-d4af-4a8d-b200-be96fab98d6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PledgingPurposeAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:to="loc_us-gaap_PledgingPurposeAxis_24ac6396-d4af-4a8d-b200-be96fab98d6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PledgingPurposeDomain_90f7ed27-2b07-44c0-a7f0-252e791b6baf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PledgingPurposeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PledgingPurposeAxis_24ac6396-d4af-4a8d-b200-be96fab98d6a" xlink:to="loc_us-gaap_PledgingPurposeDomain_90f7ed27-2b07-44c0-a7f0-252e791b6baf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_2e770a04-9e1b-4525-a41b-df146781ab3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LetterOfCreditMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PledgingPurposeDomain_90f7ed27-2b07-44c0-a7f0-252e791b6baf" xlink:to="loc_us-gaap_LetterOfCreditMember_2e770a04-9e1b-4525-a41b-df146781ab3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_6c15e41b-e729-4897-ae3b-06dd3e8e451c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:to="loc_srt_RangeAxis_6c15e41b-e729-4897-ae3b-06dd3e8e451c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_9753fe65-da42-4d9b-9d1e-42127eb45f97" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_6c15e41b-e729-4897-ae3b-06dd3e8e451c" xlink:to="loc_srt_RangeMember_9753fe65-da42-4d9b-9d1e-42127eb45f97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_15a65821-352b-4e26-9fb3-a8adbfa688cf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_9753fe65-da42-4d9b-9d1e-42127eb45f97" xlink:to="loc_srt_MinimumMember_15a65821-352b-4e26-9fb3-a8adbfa688cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_29091bc5-647e-440b-8908-36fe84655b2d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_9753fe65-da42-4d9b-9d1e-42127eb45f97" xlink:to="loc_srt_MaximumMember_29091bc5-647e-440b-8908-36fe84655b2d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_c03538e7-baa3-4c84-a316-82c7eff629f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_c03538e7-baa3-4c84-a316-82c7eff629f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d7160d56-409f-4d49-8900-8e3712af4dd8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_c03538e7-baa3-4c84-a316-82c7eff629f5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d7160d56-409f-4d49-8900-8e3712af4dd8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ScannerAppliancesMember_b123cd44-8a94-4237-864b-4efb92e56d31" xlink:href="qlys-20231231.xsd#qlys_ScannerAppliancesMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d7160d56-409f-4d49-8900-8e3712af4dd8" xlink:to="loc_qlys_ScannerAppliancesMember_b123cd44-8a94-4237-864b-4efb92e56d31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4eafe5d7-08c9-43ae-a439-bbbbb702f692" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4eafe5d7-08c9-43ae-a439-bbbbb702f692" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_20b8a288-d94f-4a30-b7bd-15e27dcc493c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4eafe5d7-08c9-43ae-a439-bbbbb702f692" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_20b8a288-d94f-4a30-b7bd-15e27dcc493c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_312790a8-c6f8-4b69-b02b-72d3ca7650f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_20b8a288-d94f-4a30-b7bd-15e27dcc493c" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_312790a8-c6f8-4b69-b02b-72d3ca7650f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTable_b2f34747-f3ed-47d6-b938-cdcbd8f9b0a9" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_d844a525-5fd7-489a-97c4-b990575014be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCash"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_RestrictedCash_d844a525-5fd7-489a-97c4-b990575014be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNet_4ddb9148-beaa-4af8-ad7d-a802399b56f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNet"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_AccountsReceivableNet_4ddb9148-beaa-4af8-ad7d-a802399b56f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_db4ddfc4-5b9b-4409-95fd-e1bee07edca4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Investments"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_Investments_db4ddfc4-5b9b-4409-95fd-e1bee07edca4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDividendsReceived_8e759bb3-d039-42eb-87c3-224c87310a45" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromDividendsReceived"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_ProceedsFromDividendsReceived_8e759bb3-d039-42eb-87c3-224c87310a45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForAdvanceToAffiliate_8e4a0175-c985-429f-b4ac-5bb7873bb899" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForAdvanceToAffiliate"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_PaymentsForAdvanceToAffiliate_8e4a0175-c985-429f-b4ac-5bb7873bb899" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_96d1092c-76aa-4bae-9e96-499cb3f282e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_96d1092c-76aa-4bae-9e96-499cb3f282e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_368941d7-65cf-4f65-b97e-e017bc441112" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_368941d7-65cf-4f65-b97e-e017bc441112" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportingUnits_0b72c74e-229c-4ada-ad63-af52072188cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NumberOfReportingUnits"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_NumberOfReportingUnits_0b72c74e-229c-4ada-ad63-af52072188cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_09e40804-9189-477f-8d5a-f0eda1f52d72" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_09e40804-9189-477f-8d5a-f0eda1f52d72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTermOfContract_5f48f30c-0fa7-41e4-a345-25a4affc39b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeTermOfContract"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_DerivativeTermOfContract_5f48f30c-0fa7-41e4-a345-25a4affc39b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_e6d1a485-6249-41b7-800b-cecf904dc2c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostAmortizationPeriod"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_e6d1a485-6249-41b7-800b-cecf904dc2c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_0a704ab7-5811-4796-bdea-4e0aad9ca8f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdvertisingExpense"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_9d38ae4b-f41d-4bd9-96ca-767e96dcdbb3" xlink:to="loc_us-gaap_AdvertisingExpense_0a704ab7-5811-4796-bdea-4e0aad9ca8f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsFairValueHierarchyDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsFairValueHierarchyDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsFairValueHierarchyDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_10ca8ed6-e0d8-4bac-9b4a-b9d5628f422a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_db0f4c1d-a3c8-45c6-8d3a-713b4a4ef121" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_10ca8ed6-e0d8-4bac-9b4a-b9d5628f422a" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_db0f4c1d-a3c8-45c6-8d3a-713b4a4ef121" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5037fe67-55b1-4111-b221-62f96454475d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_db0f4c1d-a3c8-45c6-8d3a-713b4a4ef121" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5037fe67-55b1-4111-b221-62f96454475d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9d278bc8-2e1d-4a84-8cb8-7dab8e3131d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5037fe67-55b1-4111-b221-62f96454475d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9d278bc8-2e1d-4a84-8cb8-7dab8e3131d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_2808171f-f38f-4d66-b245-b83fb5c73ec9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9d278bc8-2e1d-4a84-8cb8-7dab8e3131d0" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_2808171f-f38f-4d66-b245-b83fb5c73ec9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_fbb75b89-0b28-477d-a0b6-778a5a7caa8d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9d278bc8-2e1d-4a84-8cb8-7dab8e3131d0" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_fbb75b89-0b28-477d-a0b6-778a5a7caa8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6fd6ed1f-2f1f-4aa9-8225-1079bd7281d6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_db0f4c1d-a3c8-45c6-8d3a-713b4a4ef121" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6fd6ed1f-2f1f-4aa9-8225-1079bd7281d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_f8d3dff7-41b0-443e-8976-a8f4b37660c7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6fd6ed1f-2f1f-4aa9-8225-1079bd7281d6" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_f8d3dff7-41b0-443e-8976-a8f4b37660c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_7e17cfdc-aaaa-4e5f-b071-0a33a83b2a81" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_f8d3dff7-41b0-443e-8976-a8f4b37660c7" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_7e17cfdc-aaaa-4e5f-b071-0a33a83b2a81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresLineItems"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_db0f4c1d-a3c8-45c6-8d3a-713b4a4ef121" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_c4c64d17-73aa-47fc-bd4b-1bd2fdf32611" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MoneyMarketFundsAtCarryingValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_c4c64d17-73aa-47fc-bd4b-1bd2fdf32611" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperAtCarryingValue_3d32bdd8-2906-434c-ae2c-ea1a5f4a2891" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommercialPaperAtCarryingValue"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_CommercialPaperAtCarryingValue_3d32bdd8-2906-434c-ae2c-ea1a5f4a2891" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesSecuritiesAtCarryingValue_6312c064-3c37-4fbe-92d9-4e6c889a61fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_USGovernmentAgenciesSecuritiesAtCarryingValue"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_USGovernmentAgenciesSecuritiesAtCarryingValue_6312c064-3c37-4fbe-92d9-4e6c889a61fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedOtherSovereignGovernmentObligationsAtFairValue_3d2d502c-ba8b-4518-ae04-c68e1b04c56f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentsOwnedOtherSovereignGovernmentObligationsAtFairValue"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_FinancialInstrumentsOwnedOtherSovereignGovernmentObligationsAtFairValue_3d2d502c-ba8b-4518-ae04-c68e1b04c56f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedCorporateDebtAtFairValue_cecc6514-7644-43e2-bd31-d5c9c3557b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentsOwnedCorporateDebtAtFairValue"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_FinancialInstrumentsOwnedCorporateDebtAtFairValue_cecc6514-7644-43e2-bd31-d5c9c3557b7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetBackedSecuritiesAtCarryingValue_e82719d0-4f2d-4e5c-9ae1-4f3e43835193" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetBackedSecuritiesAtCarryingValue"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_AssetBackedSecuritiesAtCarryingValue_e82719d0-4f2d-4e5c-9ae1-4f3e43835193" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedDerivativesAndOtherContractualAgreementsAtFairValue_41740a92-eb8d-4a01-b9af-31a11d68b6cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentsOwnedDerivativesAndOtherContractualAgreementsAtFairValue"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_FinancialInstrumentsOwnedDerivativesAndOtherContractualAgreementsAtFairValue_41740a92-eb8d-4a01-b9af-31a11d68b6cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedAtFairValue_03af5cce-c1bc-4323-9586-1a03e314eccb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentsOwnedAtFairValue"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_FinancialInstrumentsOwnedAtFairValue_03af5cce-c1bc-4323-9586-1a03e314eccb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_fb6c915c-98a6-43eb-8394-2dc4bfbccefe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_fb6c915c-98a6-43eb-8394-2dc4bfbccefe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_99f256cc-f508-4a20-adcc-77ec551c5e1d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresLineItems_dcabb05b-5ef1-41a5-bff1-3e746d5935af" xlink:to="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_99f256cc-f508-4a20-adcc-77ec551c5e1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsCashandCashEquivalentsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsCashandCashEquivalentsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsCashandCashEquivalentsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_f6c111e9-bffa-4d0a-bea9-e5ce64b52e68" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_ba94bb9d-fb94-4b68-9290-f78f7c377b8d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_f6c111e9-bffa-4d0a-bea9-e5ce64b52e68" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_ba94bb9d-fb94-4b68-9290-f78f7c377b8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_c094bb9f-89f5-4018-8b38-6885ec6bd315" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_ba94bb9d-fb94-4b68-9290-f78f7c377b8d" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_c094bb9f-89f5-4018-8b38-6885ec6bd315" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_708d75f5-3243-40b0-a3bc-f50eca6a212c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_c094bb9f-89f5-4018-8b38-6885ec6bd315" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_708d75f5-3243-40b0-a3bc-f50eca6a212c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_50cae922-befe-4d83-b119-70022e67d6a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MoneyMarketFundsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_708d75f5-3243-40b0-a3bc-f50eca6a212c" xlink:to="loc_us-gaap_MoneyMarketFundsMember_50cae922-befe-4d83-b119-70022e67d6a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_85fb775f-9d67-48b2-b053-feeddc3132b1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_708d75f5-3243-40b0-a3bc-f50eca6a212c" xlink:to="loc_us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember_85fb775f-9d67-48b2-b053-feeddc3132b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_da94b540-ae14-411f-9e8f-7ef745acd1bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_ba94bb9d-fb94-4b68-9290-f78f7c377b8d" xlink:to="loc_us-gaap_FinancialInstrumentAxis_da94b540-ae14-411f-9e8f-7ef745acd1bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_da94b540-ae14-411f-9e8f-7ef745acd1bb" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember_2303d26a-70ba-486c-a43c-a9efbe2ac9dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:to="loc_us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember_2303d26a-70ba-486c-a43c-a9efbe2ac9dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_71f92ca3-18fb-4cfe-a602-7e345aeb5b93" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CorporateDebtSecuritiesMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_71f92ca3-18fb-4cfe-a602-7e345aeb5b93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_ae915ded-e275-4c3b-89ec-92df06bf5b93" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetBackedSecuritiesMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_ae915ded-e275-4c3b-89ec-92df06bf5b93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_3777b7e4-e71d-485b-b21c-605637cc748f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_3777b7e4-e71d-485b-b21c-605637cc748f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ForeignGovernmentAgenciesMember_e8c10d7a-0265-42d8-8315-07663292fe70" xlink:href="qlys-20231231.xsd#qlys_ForeignGovernmentAgenciesMember"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_68de5ff3-1df6-4340-ad6c-60fd36b5d676" xlink:to="loc_qlys_ForeignGovernmentAgenciesMember_e8c10d7a-0265-42d8-8315-07663292fe70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_ee1c884f-480f-4398-a2a9-22f92666e150" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByAssetClassAxis"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_ba94bb9d-fb94-4b68-9290-f78f7c377b8d" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_ee1c884f-480f-4398-a2a9-22f92666e150" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_5880f940-1d8c-409e-b6c9-ea465a422cc1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_ee1c884f-480f-4398-a2a9-22f92666e150" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_5880f940-1d8c-409e-b6c9-ea465a422cc1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashEquivalentsMember_adff6eef-31f1-45b3-9f79-1f12b0bfc084" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashEquivalentsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_5880f940-1d8c-409e-b6c9-ea465a422cc1" xlink:to="loc_us-gaap_CashEquivalentsMember_adff6eef-31f1-45b3-9f79-1f12b0bfc084" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestmentsMember_88510161-64fe-46d6-b425-19781aa09be0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermInvestmentsMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_5880f940-1d8c-409e-b6c9-ea465a422cc1" xlink:to="loc_us-gaap_ShortTermInvestmentsMember_88510161-64fe-46d6-b425-19781aa09be0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestmentsMember_68393ec6-44b3-4a6b-8470-613c7bf3d437" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLongTermInvestmentsMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_5880f940-1d8c-409e-b6c9-ea465a422cc1" xlink:to="loc_us-gaap_OtherLongTermInvestmentsMember_68393ec6-44b3-4a6b-8470-613c7bf3d437" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativesFairValueLineItems"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_ba94bb9d-fb94-4b68-9290-f78f7c377b8d" xlink:to="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3f0b9f16-2a12-428f-96e4-1bb008ea7cc0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3f0b9f16-2a12-428f-96e4-1bb008ea7cc0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_6f0b4804-8877-4030-a012-e66663b24cfb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_6f0b4804-8877-4030-a012-e66663b24cfb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_8ec4c1e2-a6a3-4fa4-96c2-e8cd41eb27a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_8ec4c1e2-a6a3-4fa4-96c2-e8cd41eb27a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_81add350-5a93-4c06-bba6-b344d03c9ca1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_81add350-5a93-4c06-bba6-b344d03c9ca1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_Cash_146e15f9-0735-42a0-b17e-431008b94931" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Cash"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_2a958861-37a3-40e8-ab98-18503cb8df18" xlink:to="loc_us-gaap_Cash_146e15f9-0735-42a0-b17e-431008b94931" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsSummaryofSecuritiesinUnrealizedLossPositionsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsSummaryofSecuritiesinUnrealizedLossPositionsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsSummaryofSecuritiesinUnrealizedLossPositionsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_730c3712-b6b2-41cd-956a-6ccf68860eb0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_b11bf892-d1fa-4ad9-b0cb-160b3a20998c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_730c3712-b6b2-41cd-956a-6ccf68860eb0" xlink:to="loc_us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_b11bf892-d1fa-4ad9-b0cb-160b3a20998c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_ee7cd8b2-e1c8-4cae-856b-3c0ab59fca2e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_b11bf892-d1fa-4ad9-b0cb-160b3a20998c" xlink:to="loc_us-gaap_FinancialInstrumentAxis_ee7cd8b2-e1c8-4cae-856b-3c0ab59fca2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_ee7cd8b2-e1c8-4cae-856b-3c0ab59fca2e" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember_383560a8-9bb6-4b25-9cfc-a67afecf11ae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:to="loc_us-gaap_CommercialPaperNotIncludedWithCashAndCashEquivalentsMember_383560a8-9bb6-4b25-9cfc-a67afecf11ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ForeignGovernmentAgenciesMember_fb8b390a-aa97-4d7f-8a14-88640b3ee35a" xlink:href="qlys-20231231.xsd#qlys_ForeignGovernmentAgenciesMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:to="loc_qlys_ForeignGovernmentAgenciesMember_fb8b390a-aa97-4d7f-8a14-88640b3ee35a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_6f845d8b-5cd6-407e-b6e1-4bb62c629a96" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetBackedSecuritiesMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_6f845d8b-5cd6-407e-b6e1-4bb62c629a96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_830c3ef4-13f9-4064-ae4d-5b1f24b974c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CorporateDebtSecuritiesMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_830c3ef4-13f9-4064-ae4d-5b1f24b974c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_73b34a20-2fa3-4f6f-9ccd-c003dfa91f0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_b9a49c51-ffd1-4bb8-bbb9-a035b55079c2" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_73b34a20-2fa3-4f6f-9ccd-c003dfa91f0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_472329a7-e798-4ac2-af17-3fe00d5ff9d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_b11bf892-d1fa-4ad9-b0cb-160b3a20998c" xlink:to="loc_us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_472329a7-e798-4ac2-af17-3fe00d5ff9d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesCurrentAbstract_5512143c-6624-4fdf-827e-1c2b27fa0b82" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesCurrentAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_472329a7-e798-4ac2-af17-3fe00d5ff9d3" xlink:to="loc_us-gaap_DebtSecuritiesCurrentAbstract_5512143c-6624-4fdf-827e-1c2b27fa0b82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_deb38f31-949a-455a-9d5d-9c09b03ec0b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesCurrentAbstract_5512143c-6624-4fdf-827e-1c2b27fa0b82" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_deb38f31-949a-455a-9d5d-9c09b03ec0b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_e5258b29-1f51-45f0-bdd5-4f0dd1588c80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesCurrentAbstract_5512143c-6624-4fdf-827e-1c2b27fa0b82" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_e5258b29-1f51-45f0-bdd5-4f0dd1588c80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesNoncurrentAbstract_572a502d-2584-47bd-9350-1166afee2187" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesNoncurrentAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_472329a7-e798-4ac2-af17-3fe00d5ff9d3" xlink:to="loc_us-gaap_DebtSecuritiesNoncurrentAbstract_572a502d-2584-47bd-9350-1166afee2187" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_323b0cd7-f154-478d-be52-a316a4777e70" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesNoncurrentAbstract_572a502d-2584-47bd-9350-1166afee2187" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_323b0cd7-f154-478d-be52-a316a4777e70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_8e7ecfe9-13ad-4a4d-a287-d1f6c890ca48" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesNoncurrentAbstract_572a502d-2584-47bd-9350-1166afee2187" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_8e7ecfe9-13ad-4a4d-a287-d1f6c890ca48" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAbstract_686798c4-ba4a-4888-9af1-ab963ac745bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAbstract"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureAssetAndLiabilityNotMeasuredAtFairValueLineItems_472329a7-e798-4ac2-af17-3fe00d5ff9d3" xlink:to="loc_us-gaap_DebtSecuritiesAbstract_686798c4-ba4a-4888-9af1-ab963ac745bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_2e0c47d2-3791-47fb-87ca-729e4958af3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAbstract_686798c4-ba4a-4888-9af1-ab963ac745bb" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_2e0c47d2-3791-47fb-87ca-729e4958af3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_e7506d02-4ca4-4f55-9c78-849a9d37dd58" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAbstract_686798c4-ba4a-4888-9af1-ab963ac745bb" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_e7506d02-4ca4-4f55-9c78-849a9d37dd58" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsSummaryoftheFairValueofMarketableSecuritiesDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsSummaryoftheFairValueofMarketableSecuritiesDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsSummaryoftheFairValueofMarketableSecuritiesDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_17581acc-f621-4d79-8c96-9ac482e3c495" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_17581acc-f621-4d79-8c96-9ac482e3c495" xlink:to="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_fe1148f5-af20-413a-87bc-ccffad8b5823" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_fe1148f5-af20-413a-87bc-ccffad8b5823" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_f11a3300-1f55-431e-a58c-9561813c331d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost_f11a3300-1f55-431e-a58c-9561813c331d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_fa6f3435-5232-4106-8bc8-fbe94e6d313e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost_fa6f3435-5232-4106-8bc8-fbe94e6d313e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_fbf1a378-d54d-4e77-96ce-da3f3466193c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_fbf1a378-d54d-4e77-96ce-da3f3466193c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3411e493-7986-4041-b083-710cf680bb73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract_00303622-7148-44ef-a850-22993a497f60" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3411e493-7986-4041-b083-710cf680bb73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_17581acc-f621-4d79-8c96-9ac482e3c495" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_0fd2b410-1eb4-4ce4-bf28-c62d3597b886" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_0fd2b410-1eb4-4ce4-bf28-c62d3597b886" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_7f1b6a38-aaaf-492f-8982-8fa0f79f4ada" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_7f1b6a38-aaaf-492f-8982-8fa0f79f4ada" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_46acc4e5-265b-4ec6-aafa-363c3fdffa8d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_46acc4e5-265b-4ec6-aafa-363c3fdffa8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_6a9341ca-578f-4472-a7c4-26a51ef4d6c3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_6a9341ca-578f-4472-a7c4-26a51ef4d6c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_ba9ccabb-07ba-4f88-b2d5-3674dcd745e9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityFairValueAbstract_7182bda6-ebe2-40c2-bafe-d250a4d582a6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_ba9ccabb-07ba-4f88-b2d5-3674dcd745e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_e280f55e-c239-4665-aa30-88edbccdde9e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingAssetsTable_c0676053-47e6-4a47-8295-01f65ba4d344" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OffsettingAssetsTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_e280f55e-c239-4665-aa30-88edbccdde9e" xlink:to="loc_us-gaap_OffsettingAssetsTable_c0676053-47e6-4a47-8295-01f65ba4d344" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_2e500c11-1a86-443d-835c-4b9213d7ff65" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OffsettingAssetsTable_c0676053-47e6-4a47-8295-01f65ba4d344" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_2e500c11-1a86-443d-835c-4b9213d7ff65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_850648a9-90f7-4b55-83df-1427fa667383" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_2e500c11-1a86-443d-835c-4b9213d7ff65" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_850648a9-90f7-4b55-83df-1427fa667383" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_e63ac97d-de65-4782-8e1a-dc0f2209b81f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeContractMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_850648a9-90f7-4b55-83df-1427fa667383" xlink:to="loc_us-gaap_ForeignExchangeContractMember_e63ac97d-de65-4782-8e1a-dc0f2209b81f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ForeignExchangeContractsForGBPAndEuroMember_b03123af-7bcb-4bc9-a358-605576e340c4" xlink:href="qlys-20231231.xsd#qlys_ForeignExchangeContractsForGBPAndEuroMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_850648a9-90f7-4b55-83df-1427fa667383" xlink:to="loc_qlys_ForeignExchangeContractsForGBPAndEuroMember_b03123af-7bcb-4bc9-a358-605576e340c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_8512fa18-28fe-4359-9032-cacd623a2ea7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OffsettingAssetsTable_c0676053-47e6-4a47-8295-01f65ba4d344" xlink:to="loc_us-gaap_HedgingDesignationAxis_8512fa18-28fe-4359-9032-cacd623a2ea7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_efd9cc12-c5f3-44c3-9ed5-d238937613d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationAxis_8512fa18-28fe-4359-9032-cacd623a2ea7" xlink:to="loc_us-gaap_HedgingDesignationDomain_efd9cc12-c5f3-44c3-9ed5-d238937613d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_1010cfd3-2808-48c2-bb1c-f168604ad957" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationDomain_efd9cc12-c5f3-44c3-9ed5-d238937613d7" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_1010cfd3-2808-48c2-bb1c-f168604ad957" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_2e42b54c-e93d-4f22-87fd-3a5fa0431e00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationDomain_efd9cc12-c5f3-44c3-9ed5-d238937613d7" xlink:to="loc_us-gaap_NondesignatedMember_2e42b54c-e93d-4f22-87fd-3a5fa0431e00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d78d01d4-e6ec-4776-a6fe-2a74b9ca50f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OffsettingAssetsTable_c0676053-47e6-4a47-8295-01f65ba4d344" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d78d01d4-e6ec-4776-a6fe-2a74b9ca50f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_8e361749-cbd8-443b-b571-cda24cbbfb7c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d78d01d4-e6ec-4776-a6fe-2a74b9ca50f0" xlink:to="loc_us-gaap_HedgingRelationshipDomain_8e361749-cbd8-443b-b571-cda24cbbfb7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_4f162548-9571-415a-bd36-5c09f5f592f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashFlowHedgingMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_8e361749-cbd8-443b-b571-cda24cbbfb7c" xlink:to="loc_us-gaap_CashFlowHedgingMember_4f162548-9571-415a-bd36-5c09f5f592f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_4a442896-cf86-4fa3-8349-4334ce78b07d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativesFairValueLineItems"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OffsettingAssetsTable_c0676053-47e6-4a47-8295-01f65ba4d344" xlink:to="loc_us-gaap_DerivativesFairValueLineItems_4a442896-cf86-4fa3-8349-4334ce78b07d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_b2e9b41e-6f66-4a55-b0a2-56e7c067ecaa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeNotionalAmount"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_4a442896-cf86-4fa3-8349-4334ce78b07d" xlink:to="loc_us-gaap_DerivativeNotionalAmount_b2e9b41e-6f66-4a55-b0a2-56e7c067ecaa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months_02bd10a6-3aae-4b0f-a665-311ceb47008a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_4a442896-cf86-4fa3-8349-4334ce78b07d" xlink:to="loc_us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months_02bd10a6-3aae-4b0f-a665-311ceb47008a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsSummaryofDerivativeFinancialInstrumentsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsSummaryofDerivativeFinancialInstrumentsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsSummaryofDerivativeFinancialInstrumentsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_f7bd14b0-2940-41d2-95b6-41ec4a18e29f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_6e7e3f05-992d-4626-8b2e-04ea02d60306" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionQuantitativeDisclosuresTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_f7bd14b0-2940-41d2-95b6-41ec4a18e29f" xlink:to="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_6e7e3f05-992d-4626-8b2e-04ea02d60306" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_57adc63c-215b-406a-ab09-6898e3547214" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_6e7e3f05-992d-4626-8b2e-04ea02d60306" xlink:to="loc_us-gaap_HedgingDesignationAxis_57adc63c-215b-406a-ab09-6898e3547214" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_d19debfb-863b-4130-9f39-b67cd8a90586" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationAxis_57adc63c-215b-406a-ab09-6898e3547214" xlink:to="loc_us-gaap_HedgingDesignationDomain_d19debfb-863b-4130-9f39-b67cd8a90586" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_a8f5040b-a251-4e39-b128-34d5df66c0de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationDomain_d19debfb-863b-4130-9f39-b67cd8a90586" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_a8f5040b-a251-4e39-b128-34d5df66c0de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_d9991d18-428b-445e-81c5-d776263ec3cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationDomain_d19debfb-863b-4130-9f39-b67cd8a90586" xlink:to="loc_us-gaap_NondesignatedMember_d9991d18-428b-445e-81c5-d776263ec3cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_6d251148-2c5d-4c87-b645-731c62ee4d63" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativesFairValueLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueOptionQuantitativeDisclosuresTable_6e7e3f05-992d-4626-8b2e-04ea02d60306" xlink:to="loc_us-gaap_DerivativesFairValueLineItems_6d251148-2c5d-4c87-b645-731c62ee4d63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_7a461527-c07f-40b9-ac94-a4c0e11c2659" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyContractAssetFairValueDisclosure"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_6d251148-2c5d-4c87-b645-731c62ee4d63" xlink:to="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_7a461527-c07f-40b9-ac94-a4c0e11c2659" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_3ba342f4-84fd-46e6-91f2-45a9aa832454" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_6d251148-2c5d-4c87-b645-731c62ee4d63" xlink:to="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_3ba342f4-84fd-46e6-91f2-45a9aa832454" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/FairValueofFinancialInstrumentsAmountsRecognizedInStatementofOperationsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#FairValueofFinancialInstrumentsAmountsRecognizedInStatementofOperationsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/FairValueofFinancialInstrumentsAmountsRecognizedInStatementofOperationsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_d6e11d97-7e38-4457-8dd3-04bff986deb5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosuresAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments_bb44e958-b937-40b5-b037-88bfb709c244" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_d6e11d97-7e38-4457-8dd3-04bff986deb5" xlink:to="loc_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments_bb44e958-b937-40b5-b037-88bfb709c244" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_e5c5a103-fbf2-412d-a065-4edbe0742641" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_d6e11d97-7e38-4457-8dd3-04bff986deb5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_e5c5a103-fbf2-412d-a065-4edbe0742641" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_a6a8c403-cd0d-4182-bb0b-11165b46771f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_d6e11d97-7e38-4457-8dd3-04bff986deb5" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_a6a8c403-cd0d-4182-bb0b-11165b46771f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#AccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_b7c6da13-caa9-49fe-b820-38df8a8d271f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_5f283f41-91c0-4744-9f12-99d272f6483e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_b7c6da13-caa9-49fe-b820-38df8a8d271f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_5f283f41-91c0-4744-9f12-99d272f6483e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_f8dd2d11-775f-45d8-a732-4e3ed8298942" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_5f283f41-91c0-4744-9f12-99d272f6483e" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_f8dd2d11-775f-45d8-a732-4e3ed8298942" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_8db52e39-9e66-4bc1-bb75-01ed6bd2d7b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_f8dd2d11-775f-45d8-a732-4e3ed8298942" xlink:to="loc_us-gaap_EquityComponentDomain_8db52e39-9e66-4bc1-bb75-01ed6bd2d7b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_cf890a5f-487f-4cec-9ae1-7b35fab142e3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_8db52e39-9e66-4bc1-bb75-01ed6bd2d7b8" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_cf890a5f-487f-4cec-9ae1-7b35fab142e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_92fae335-93d6-4e4a-a71f-7298b16cf028" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_cf890a5f-487f-4cec-9ae1-7b35fab142e3" xlink:to="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_92fae335-93d6-4e4a-a71f-7298b16cf028" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_75e81228-f349-464c-8643-d53139c7638f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_cf890a5f-487f-4cec-9ae1-7b35fab142e3" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_75e81228-f349-464c-8643-d53139c7638f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_7c6b3b3e-e03d-46bb-acac-f66bcc0057b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_5f283f41-91c0-4744-9f12-99d272f6483e" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_7c6b3b3e-e03d-46bb-acac-f66bcc0057b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AOCIAttributableToParentNetOfTaxRollForward"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_7c6b3b3e-e03d-46bb-acac-f66bcc0057b6" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_adbb807a-7b68-4d3d-86d2-5064a13610f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:to="loc_us-gaap_StockholdersEquity_adbb807a-7b68-4d3d-86d2-5064a13610f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent_ff28df7b-f4cb-4d58-ba75-9b55ca4d73e8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:to="loc_us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent_ff28df7b-f4cb-4d58-ba75-9b55ca4d73e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent_8d131097-9f31-4870-9914-58208023f46d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent_8d131097-9f31-4870-9914-58208023f46d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_19b882d6-a96f-493a-ad8d-64c457d7ff87" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_19b882d6-a96f-493a-ad8d-64c457d7ff87" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_3340fa5e-50c7-45af-8b02-3aec3c6fbe13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_3340fa5e-50c7-45af-8b02-3aec3c6fbe13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_f0d4aa7b-2834-4089-a62c-3d769bf4c729" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9a9adfff-8a0e-46e6-a2ad-a5e3f7863902" xlink:to="loc_us-gaap_StockholdersEquity_f0d4aa7b-2834-4089-a62c-3d769bf4c729" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLossAmountsReclassifiedfromAOCIDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#AccumulatedOtherComprehensiveIncomeLossAmountsReclassifiedfromAOCIDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/AccumulatedOtherComprehensiveIncomeLossAmountsReclassifiedfromAOCIDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_55ed4c6f-2bc0-427d-94e4-f164b7f4dd01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8cd8e84f-88b6-4443-93c9-b46cff86b2ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_55ed4c6f-2bc0-427d-94e4-f164b7f4dd01" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8cd8e84f-88b6-4443-93c9-b46cff86b2ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_54dc66bf-ece0-4e08-818d-611a88776327" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8cd8e84f-88b6-4443-93c9-b46cff86b2ba" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_54dc66bf-ece0-4e08-818d-611a88776327" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_ae10e627-9981-483f-9bef-83c61422c5c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_54dc66bf-ece0-4e08-818d-611a88776327" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_ae10e627-9981-483f-9bef-83c61422c5c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_358c6efe-20bf-4f88-8a9f-12d08e319188" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_ae10e627-9981-483f-9bef-83c61422c5c5" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_358c6efe-20bf-4f88-8a9f-12d08e319188" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_b94338ef-5e78-4635-ade1-c7884638351e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8cd8e84f-88b6-4443-93c9-b46cff86b2ba" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_b94338ef-5e78-4635-ade1-c7884638351e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_dab74778-269f-4220-b58f-00b4e59e36a3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_b94338ef-5e78-4635-ade1-c7884638351e" xlink:to="loc_us-gaap_EquityComponentDomain_dab74778-269f-4220-b58f-00b4e59e36a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_0cad3af3-639c-4264-92a2-557bbe2a331f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_dab74778-269f-4220-b58f-00b4e59e36a3" xlink:to="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_0cad3af3-639c-4264-92a2-557bbe2a331f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_5bf79c33-ec42-4c88-a35d-da0a412dced7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_dab74778-269f-4220-b58f-00b4e59e36a3" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_5bf79c33-ec42-4c88-a35d-da0a412dced7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_1d11e02c-55ac-4758-a197-a82e82bfd583" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8cd8e84f-88b6-4443-93c9-b46cff86b2ba" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_1d11e02c-55ac-4758-a197-a82e82bfd583" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodTaxAbstract_976ec502-94c4-45c8-aaca-5309ff2b50ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTaxAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_1d11e02c-55ac-4758-a197-a82e82bfd583" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodTaxAbstract_976ec502-94c4-45c8-aaca-5309ff2b50ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_ff97ddde-6577-488c-ac4f-314896b9c513" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationFromAociCurrentPeriodTaxAbstract_976ec502-94c4-45c8-aaca-5309ff2b50ee" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_ff97ddde-6577-488c-ac4f-314896b9c513" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AOCIAttributableToParentAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_1d11e02c-55ac-4758-a197-a82e82bfd583" xlink:to="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_db4a7d01-f17c-409c-b8c9-f4bc739012fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_db4a7d01-f17c-409c-b8c9-f4bc739012fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_471c3736-baa9-4e25-bf9a-9abc407b3eba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfRevenue"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:to="loc_us-gaap_CostOfRevenue_471c3736-baa9-4e25-bf9a-9abc407b3eba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_fdcef6d4-7060-4d28-8d9f-2d3dbb9c6d3c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_fdcef6d4-7060-4d28-8d9f-2d3dbb9c6d3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_024d0fe4-0f5f-4c35-b95e-1cab775fd759" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingAndMarketingExpense"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:to="loc_us-gaap_SellingAndMarketingExpense_024d0fe4-0f5f-4c35-b95e-1cab775fd759" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_08ccedda-c5cc-44bc-8cb2-cb1c4832236d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_08ccedda-c5cc-44bc-8cb2-cb1c4832236d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_e427109d-2f14-4567-a969-43386ac81ee6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentAbstract_0e234316-e429-42ba-8de2-d833399d1b18" xlink:to="loc_us-gaap_NetIncomeLoss_e427109d-2f14-4567-a969-43386ac81ee6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_aa47cad9-b9a6-4932-9397-694821f950cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_834ec886-183a-42b8-b8d9-5e3fa18e146d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_aa47cad9-b9a6-4932-9397-694821f950cc" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_834ec886-183a-42b8-b8d9-5e3fa18e146d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_efb27cff-23dc-48aa-9e69-36acb10fa154" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_834ec886-183a-42b8-b8d9-5e3fa18e146d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_efb27cff-23dc-48aa-9e69-36acb10fa154" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_efb27cff-23dc-48aa-9e69-36acb10fa154" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_447744c3-2fd4-4255-b501-d78ab68d1d81" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComputerEquipmentMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:to="loc_us-gaap_ComputerEquipmentMember_447744c3-2fd4-4255-b501-d78ab68d1d81" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_32a74b03-16be-439a-8755-f7453481ada6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComputerSoftwareIntangibleAssetMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:to="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_32a74b03-16be-439a-8755-f7453481ada6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_5e96e5a8-2f5e-49de-a838-2d7078875cfc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseholdImprovementsMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_5e96e5a8-2f5e-49de-a838-2d7078875cfc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ScannerAppliancesMember_5c97d9b2-35c3-4dd0-a861-34d8d5cad86e" xlink:href="qlys-20231231.xsd#qlys_ScannerAppliancesMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:to="loc_qlys_ScannerAppliancesMember_5c97d9b2-35c3-4dd0-a861-34d8d5cad86e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_583cca31-524b-4a0d-85ba-5c4c0823afc6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1aad3963-a05d-438d-994a-0457da09cf58" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_583cca31-524b-4a0d-85ba-5c4c0823afc6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_11444224-55fc-4cfc-826c-c72e74f38454" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_834ec886-183a-42b8-b8d9-5e3fa18e146d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_11444224-55fc-4cfc-826c-c72e74f38454" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_c497b572-e7c0-49c2-93f4-98605e1ad925" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_11444224-55fc-4cfc-826c-c72e74f38454" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_c497b572-e7c0-49c2-93f4-98605e1ad925" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_36a213e4-3fdf-4a2a-949e-b4eb195dde6c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_11444224-55fc-4cfc-826c-c72e74f38454" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_36a213e4-3fdf-4a2a-949e-b4eb195dde6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_b8ab5f60-f2d5-4761-8634-7b44af6e28fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_11444224-55fc-4cfc-826c-c72e74f38454" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_b8ab5f60-f2d5-4761-8634-7b44af6e28fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/PropertyandEquipmentNetNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#PropertyandEquipmentNetNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/PropertyandEquipmentNetNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_06a3a1ff-bb47-4fb5-a083-fcdc9178cda3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_28228401-9f41-43ce-ae20-5ee3bbf6304f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_06a3a1ff-bb47-4fb5-a083-fcdc9178cda3" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_28228401-9f41-43ce-ae20-5ee3bbf6304f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7c4e2d5a-1622-41ea-a231-c72339649f12" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_28228401-9f41-43ce-ae20-5ee3bbf6304f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7c4e2d5a-1622-41ea-a231-c72339649f12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_693b25ba-006a-4547-b73c-b8da5d04385b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7c4e2d5a-1622-41ea-a231-c72339649f12" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_693b25ba-006a-4547-b73c-b8da5d04385b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ScannerAppliancesAndOtherComputerEquipmentSubjectToSubscriptionMember_0905b681-0204-460c-ad05-f12435ab15f1" xlink:href="qlys-20231231.xsd#qlys_ScannerAppliancesAndOtherComputerEquipmentSubjectToSubscriptionMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_693b25ba-006a-4547-b73c-b8da5d04385b" xlink:to="loc_qlys_ScannerAppliancesAndOtherComputerEquipmentSubjectToSubscriptionMember_0905b681-0204-460c-ad05-f12435ab15f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ScannerAppliancesAndOtherComputerEquipmentNotPlacedInServiceMember_ad85c147-193c-40e2-b3d2-ff90728f83ac" xlink:href="qlys-20231231.xsd#qlys_ScannerAppliancesAndOtherComputerEquipmentNotPlacedInServiceMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_693b25ba-006a-4547-b73c-b8da5d04385b" xlink:to="loc_qlys_ScannerAppliancesAndOtherComputerEquipmentNotPlacedInServiceMember_ad85c147-193c-40e2-b3d2-ff90728f83ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f65eb938-4438-4ffb-9839-b82d9ab62bd9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_28228401-9f41-43ce-ae20-5ee3bbf6304f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f65eb938-4438-4ffb-9839-b82d9ab62bd9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_496bfb6a-2aab-49f2-92ab-c9f57ef21f3c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f65eb938-4438-4ffb-9839-b82d9ab62bd9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_496bfb6a-2aab-49f2-92ab-c9f57ef21f3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_DepreciationDepletionAndAmortizationExcludingIntangibleAssetAmortization_e8077eaf-e064-48b6-9fe3-bfacd0763bd6" xlink:href="qlys-20231231.xsd#qlys_DepreciationDepletionAndAmortizationExcludingIntangibleAssetAmortization"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_f65eb938-4438-4ffb-9839-b82d9ab62bd9" xlink:to="loc_qlys_DepreciationDepletionAndAmortizationExcludingIntangibleAssetAmortization_e8077eaf-e064-48b6-9fe3-bfacd0763bd6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractsWithCustomersNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractsWithCustomersNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractsWithCustomersNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f8be3ad0-2464-49c8-90f3-45942428a04a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_63d10e8c-939b-4f5e-a87c-03a94c60b331" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f8be3ad0-2464-49c8-90f3-45942428a04a" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_63d10e8c-939b-4f5e-a87c-03a94c60b331" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_d8eb6ed2-2010-4b8c-9a06-f1223728f8ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiability"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f8be3ad0-2464-49c8-90f3-45942428a04a" xlink:to="loc_us-gaap_ContractWithCustomerLiability_d8eb6ed2-2010-4b8c-9a06-f1223728f8ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortization_cff04e0e-f772-4e7f-a0e6-69e2aa63e81f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostAmortization"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f8be3ad0-2464-49c8-90f3-45942428a04a" xlink:to="loc_us-gaap_CapitalizedContractCostAmortization_cff04e0e-f772-4e7f-a0e6-69e2aa63e81f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostImpairmentLoss_9c2ae956-966f-424f-a1eb-fbe44f80f09c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostImpairmentLoss"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_f8be3ad0-2464-49c8-90f3-45942428a04a" xlink:to="loc_us-gaap_CapitalizedContractCostImpairmentLoss_9c2ae956-966f-424f-a1eb-fbe44f80f09c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractswithCustomersExpectedRevenuefromAllRemainingPerformanceObligationsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractswithCustomersExpectedRevenuefromAllRemainingPerformanceObligationsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractswithCustomersExpectedRevenuefromAllRemainingPerformanceObligationsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_20fd1fc7-88e0-4f5f-9704-ad1d1cb29649" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_7321869f-57cd-4d46-aafe-55f07bd0521d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_20fd1fc7-88e0-4f5f-9704-ad1d1cb29649" xlink:to="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_7321869f-57cd-4d46-aafe-55f07bd0521d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_f39a4c37-d52f-4b69-9133-269a11adef41" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_7321869f-57cd-4d46-aafe-55f07bd0521d" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_f39a4c37-d52f-4b69-9133-269a11adef41" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_9fd53c7a-2706-4758-a9be-8670cc197539" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_7321869f-57cd-4d46-aafe-55f07bd0521d" xlink:to="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_9fd53c7a-2706-4758-a9be-8670cc197539" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_815d729f-6f16-4cdd-83e6-a4f7b6d46f99" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_9fd53c7a-2706-4758-a9be-8670cc197539" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_815d729f-6f16-4cdd-83e6-a4f7b6d46f99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_1b22e6af-9da8-4e0b-8a68-86f7c90ada74" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_9fd53c7a-2706-4758-a9be-8670cc197539" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_1b22e6af-9da8-4e0b-8a68-86f7c90ada74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractswithCustomersExpectedRevenuefromAllRemainingPerformanceObligationsDetails_1" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractswithCustomersExpectedRevenuefromAllRemainingPerformanceObligationsDetails_1"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractswithCustomersExpectedRevenuefromAllRemainingPerformanceObligationsDetails_1" xlink:type="extended"/>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractsWithCustomersRevenuebySalesChannelDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractsWithCustomersRevenuebySalesChannelDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractsWithCustomersRevenuebySalesChannelDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_6c8a9378-8356-4aff-ac25-a96faba73ba3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_cc5c8ef9-be93-4207-877f-e0bf80e9d927" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_6c8a9378-8356-4aff-ac25-a96faba73ba3" xlink:to="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_cc5c8ef9-be93-4207-877f-e0bf80e9d927" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_43f6b74d-eceb-44f8-ba1b-72eb4eeacc2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_cc5c8ef9-be93-4207-877f-e0bf80e9d927" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_43f6b74d-eceb-44f8-ba1b-72eb4eeacc2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_eb3284a1-55a7-4b0d-a2ae-6e4de5637c4f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_43f6b74d-eceb-44f8-ba1b-72eb4eeacc2a" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_eb3284a1-55a7-4b0d-a2ae-6e4de5637c4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesChannelDirectlyToConsumerMember_5cdb3ca6-6d49-4ac6-9752-6fdd1867b77d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesChannelDirectlyToConsumerMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_eb3284a1-55a7-4b0d-a2ae-6e4de5637c4f" xlink:to="loc_us-gaap_SalesChannelDirectlyToConsumerMember_5cdb3ca6-6d49-4ac6-9752-6fdd1867b77d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesChannelThroughIntermediaryMember_951ecfc8-23c3-43a6-a037-aee081536caa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesChannelThroughIntermediaryMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_eb3284a1-55a7-4b0d-a2ae-6e4de5637c4f" xlink:to="loc_us-gaap_SalesChannelThroughIntermediaryMember_951ecfc8-23c3-43a6-a037-aee081536caa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_4bb821e6-834d-46f9-a2a9-915ccc6535c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_cc5c8ef9-be93-4207-877f-e0bf80e9d927" xlink:to="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_4bb821e6-834d-46f9-a2a9-915ccc6535c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_abdf90df-310f-40e2-8d96-5b5bbd32aba6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_4bb821e6-834d-46f9-a2a9-915ccc6535c5" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_abdf90df-310f-40e2-8d96-5b5bbd32aba6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/RevenuefromContractsWithCustomersCapitalizedCosttoObtainContractsCurrentandNoncurrentDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#RevenuefromContractsWithCustomersCapitalizedCosttoObtainContractsCurrentandNoncurrentDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/RevenuefromContractsWithCustomersCapitalizedCosttoObtainContractsCurrentandNoncurrentDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_5e5615c1-9abd-4b5f-8477-6abea636b5da" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetCurrent_628ffac0-e3b6-4ed6-942a-7500de690930" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostNetCurrent"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_5e5615c1-9abd-4b5f-8477-6abea636b5da" xlink:to="loc_us-gaap_CapitalizedContractCostNetCurrent_628ffac0-e3b6-4ed6-942a-7500de690930" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostNetNoncurrent_5d334738-75e3-4c23-9385-e73ddff43d6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostNetNoncurrent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_5e5615c1-9abd-4b5f-8477-6abea636b5da" xlink:to="loc_us-gaap_CapitalizedContractCostNetNoncurrent_5d334738-75e3-4c23-9385-e73ddff43d6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/AcquisitionsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#AcquisitionsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/AcquisitionsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_b18152c1-f09d-4584-bc37-9143ff88db87" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationAndAssetAcquisitionAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_a83b08e8-873b-4a24-b72e-f16966b985f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationAndAssetAcquisitionAbstract_b18152c1-f09d-4584-bc37-9143ff88db87" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_a83b08e8-873b-4a24-b72e-f16966b985f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_0c833149-1a8a-4ccf-bc1d-d3c47c4f6b83" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_a83b08e8-873b-4a24-b72e-f16966b985f5" xlink:to="loc_us-gaap_AssetAcquisitionAxis_0c833149-1a8a-4ccf-bc1d-d3c47c4f6b83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_e112f5a5-cc13-424a-8508-900c666451ac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetAcquisitionAxis_0c833149-1a8a-4ccf-bc1d-d3c47c4f6b83" xlink:to="loc_us-gaap_AssetAcquisitionDomain_e112f5a5-cc13-424a-8508-900c666451ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_BlueHexagonIncMember_bc877c82-c8bb-4147-a3dd-696e3374bb8e" xlink:href="qlys-20231231.xsd#qlys_BlueHexagonIncMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetAcquisitionDomain_e112f5a5-cc13-424a-8508-900c666451ac" xlink:to="loc_qlys_BlueHexagonIncMember_bc877c82-c8bb-4147-a3dd-696e3374bb8e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1dd0a664-f642-459f-8b25-118c28297413" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_a83b08e8-873b-4a24-b72e-f16966b985f5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1dd0a664-f642-459f-8b25-118c28297413" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_446d8c7e-8f96-4265-95af-58618a351a98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1dd0a664-f642-459f-8b25-118c28297413" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_446d8c7e-8f96-4265-95af-58618a351a98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_da75c480-49dd-48bd-8c2b-e0ce99958c88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_446d8c7e-8f96-4265-95af-58618a351a98" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_da75c480-49dd-48bd-8c2b-e0ce99958c88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssembledWorkforceMember_ae29c995-8efd-4b83-9d44-68ca91f86c62" xlink:href="qlys-20231231.xsd#qlys_AssembledWorkforceMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_446d8c7e-8f96-4265-95af-58618a351a98" xlink:to="loc_qlys_AssembledWorkforceMember_ae29c995-8efd-4b83-9d44-68ca91f86c62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_a83b08e8-873b-4a24-b72e-f16966b985f5" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_972912bd-b02d-4b75-b5e6-70e8b143a16b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_972912bd-b02d-4b75-b5e6-70e8b143a16b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_fb52a274-cced-43c5-9b6c-3b804e902b38" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_fb52a274-cced-43c5-9b6c-3b804e902b38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetAcquisitionConsiderationTransferredPayable_d3d2ac09-b5b9-4ce6-bd55-dd8ecd8582ed" xlink:href="qlys-20231231.xsd#qlys_AssetAcquisitionConsiderationTransferredPayable"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_qlys_AssetAcquisitionConsiderationTransferredPayable_d3d2ac09-b5b9-4ce6-bd55-dd8ecd8582ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetAcquisitionConsiderationPayableTerm_f43b3f6c-5cc1-4549-b2c5-71ed456bf251" xlink:href="qlys-20231231.xsd#qlys_AssetAcquisitionConsiderationPayableTerm"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_qlys_AssetAcquisitionConsiderationPayableTerm_f43b3f6c-5cc1-4549-b2c5-71ed456bf251" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_19b73cb0-c345-4923-ad74-7ea5a23b6949" xlink:href="qlys-20231231.xsd#qlys_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_qlys_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_19b73cb0-c345-4923-ad74-7ea5a23b6949" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetAcquisitionAcquisitionRelatedCosts_420d36ed-4d76-4c4f-b2f0-707cf67672f0" xlink:href="qlys-20231231.xsd#qlys_AssetAcquisitionAcquisitionRelatedCosts"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_qlys_AssetAcquisitionAcquisitionRelatedCosts_420d36ed-4d76-4c4f-b2f0-707cf67672f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFiniteLivedIntangibles_bd72bacf-ca3a-4ee8-a0a0-c744cdbbebdc" xlink:href="qlys-20231231.xsd#qlys_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFiniteLivedIntangibles"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_qlys_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFiniteLivedIntangibles_bd72bacf-ca3a-4ee8-a0a0-c744cdbbebdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_255dcbef-7213-4df0-8a3e-854fb2b871a7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_255dcbef-7213-4df0-8a3e-854fb2b871a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_32a4c5d3-4f91-439e-aba6-b712bfaea627" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_us-gaap_FinitelivedIntangibleAssetsAcquired1_32a4c5d3-4f91-439e-aba6-b712bfaea627" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_536ae646-ea7a-4820-bc69-c3c8146a096c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireIntangibleAssets"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f572eba7-9222-439b-af53-1d811fdc8d3e" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_536ae646-ea7a-4820-bc69-c3c8146a096c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IntangibleAssetsNetCarryingValueofIntangibleAssetsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IntangibleAssetsNetCarryingValueofIntangibleAssetsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IntangibleAssetsNetCarryingValueofIntangibleAssetsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_9a2e4d80-8a7d-4e1c-bc89-64d8ef1cfd62" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3cbf159a-db05-480b-8efe-028afe4d8133" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_9a2e4d80-8a7d-4e1c-bc89-64d8ef1cfd62" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3cbf159a-db05-480b-8efe-028afe4d8133" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_532dd7a4-25eb-4026-af14-4b0cec5d7fd9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3cbf159a-db05-480b-8efe-028afe4d8133" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_532dd7a4-25eb-4026-af14-4b0cec5d7fd9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3f2631d5-0679-423a-a73f-147ffe709ba3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_532dd7a4-25eb-4026-af14-4b0cec5d7fd9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3f2631d5-0679-423a-a73f-147ffe709ba3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_b4df57fb-e998-4910-a678-ff096f53a3e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3f2631d5-0679-423a-a73f-147ffe709ba3" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_b4df57fb-e998-4910-a678-ff096f53a3e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PatentsMember_6b5e0376-f371-4785-add3-e31f52adb3ac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PatentsMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3f2631d5-0679-423a-a73f-147ffe709ba3" xlink:to="loc_us-gaap_PatentsMember_6b5e0376-f371-4785-add3-e31f52adb3ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_AssembledWorkforceMember_88496552-0d9b-4748-9051-3c6ee59eab5f" xlink:href="qlys-20231231.xsd#qlys_AssembledWorkforceMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_3f2631d5-0679-423a-a73f-147ffe709ba3" xlink:to="loc_qlys_AssembledWorkforceMember_88496552-0d9b-4748-9051-3c6ee59eab5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3cbf159a-db05-480b-8efe-028afe4d8133" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_d94ac02f-ff4b-42a9-bb4a-147ed514c891" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_d94ac02f-ff4b-42a9-bb4a-147ed514c891" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_e37b14bd-4ae4-42ca-b6ae-89057c090b9e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_e37b14bd-4ae4-42ca-b6ae-89057c090b9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7a814cb5-a7f9-4d64-b144-f465d552bbc5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7a814cb5-a7f9-4d64-b144-f465d552bbc5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_016c24e9-efb6-4748-a68f-9274d7475511" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_016c24e9-efb6-4748-a68f-9274d7475511" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7c9827f7-b5f1-4955-b2c4-b1cdbd413b95" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7c9827f7-b5f1-4955-b2c4-b1cdbd413b95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_0ae397c4-4f4d-4166-a339-aa405ba6d40a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_0ae397c4-4f4d-4166-a339-aa405ba6d40a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_b3b38bfd-c2df-4eb3-b819-99d1bad857cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_19d29e63-187a-431f-805f-0280fa91fa6d" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_b3b38bfd-c2df-4eb3-b819-99d1bad857cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IntangibleAssetsNetDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IntangibleAssetsNetDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IntangibleAssetsNetDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_93981f00-1efa-49e2-b6ea-790d5571c6c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_c4bc5482-10e6-40f2-8d58-cf17496f2e61" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_93981f00-1efa-49e2-b6ea-790d5571c6c1" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_c4bc5482-10e6-40f2-8d58-cf17496f2e61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IntangibleAssetsNetExpectedAmortizationExpenseinFuturePeriodsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IntangibleAssetsNetExpectedAmortizationExpenseinFuturePeriodsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IntangibleAssetsNetExpectedAmortizationExpenseinFuturePeriodsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_880f29b6-49aa-4689-b0b4-c1f89b4e27dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_ad1786a7-1d2d-448a-9620-871d4d58ca86" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_880f29b6-49aa-4689-b0b4-c1f89b4e27dc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_ad1786a7-1d2d-448a-9620-871d4d58ca86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_f4dd89d1-8059-424f-a69c-1198229ece61" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_880f29b6-49aa-4689-b0b4-c1f89b4e27dc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_f4dd89d1-8059-424f-a69c-1198229ece61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_e2064ff0-e20e-424c-9031-7620ce891a8a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_880f29b6-49aa-4689-b0b4-c1f89b4e27dc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_e2064ff0-e20e-424c-9031-7620ce891a8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_b9e84399-0f96-4753-8e8d-b8aa2f032e36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_880f29b6-49aa-4689-b0b4-c1f89b4e27dc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_b9e84399-0f96-4753-8e8d-b8aa2f032e36" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1890fc44-f1b1-46c6-992f-54fbffba0d59" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_880f29b6-49aa-4689-b0b4-c1f89b4e27dc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1890fc44-f1b1-46c6-992f-54fbffba0d59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/LeasesNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#LeasesNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/LeasesNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_ba3456b0-7080-49c6-9cd0-d175051a101d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeasesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense_9f8c6b18-3b53-4606-9fbe-ab3899099a8f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseExpense"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ba3456b0-7080-49c6-9cd0-d175051a101d" xlink:to="loc_us-gaap_OperatingLeaseExpense_9f8c6b18-3b53-4606-9fbe-ab3899099a8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/LeasesSupplementalCashFlowInformationDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#LeasesSupplementalCashFlowInformationDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/LeasesSupplementalCashFlowInformationDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_77b865dd-d1d9-4c7e-ae4c-8b9818dd8e98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeasesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_4d9b8600-b7e3-4d36-a8d9-333bbe507806" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasePayments"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_77b865dd-d1d9-4c7e-ae4c-8b9818dd8e98" xlink:to="loc_us-gaap_OperatingLeasePayments_4d9b8600-b7e3-4d36-a8d9-333bbe507806" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_ca8c8168-28e1-4bdf-991d-7979f2d6ad91" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_77b865dd-d1d9-4c7e-ae4c-8b9818dd8e98" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_ca8c8168-28e1-4bdf-991d-7979f2d6ad91" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/LeasesWeightedAverageRemainingLeaseTermandWeightedAverageDiscountRateDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#LeasesWeightedAverageRemainingLeaseTermandWeightedAverageDiscountRateDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/LeasesWeightedAverageRemainingLeaseTermandWeightedAverageDiscountRateDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_ed2a9a90-6354-4278-a9bc-836c3744fdc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeasesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_ede2553d-c9b4-40b0-9dcd-64267a545c1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ed2a9a90-6354-4278-a9bc-836c3744fdc3" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_ede2553d-c9b4-40b0-9dcd-64267a545c1a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_b1e53c2f-37d4-4f4f-83f5-34284c6d53a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_ed2a9a90-6354-4278-a9bc-836c3744fdc3" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_b1e53c2f-37d4-4f4f-83f5-34284c6d53a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/LeasesMinimumAnnualLeasePaymentsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#LeasesMinimumAnnualLeasePaymentsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/LeasesMinimumAnnualLeasePaymentsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeasesAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_e9ddfd78-bf21-4bf6-8caa-245da2a99e5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_e9ddfd78-bf21-4bf6-8caa-245da2a99e5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_463d4ff4-254a-458e-81af-fa9fc16a0f3d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_463d4ff4-254a-458e-81af-fa9fc16a0f3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_847e4738-aca4-4b73-a936-017c30c18613" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_847e4738-aca4-4b73-a936-017c30c18613" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_3c14ffd1-6eac-4fa7-8ff1-698bfac2f414" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_3c14ffd1-6eac-4fa7-8ff1-698bfac2f414" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_7037fcd8-5381-4aa3-8baa-1bd7210fcb2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_7037fcd8-5381-4aa3-8baa-1bd7210fcb2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_060560f7-ee5a-446e-b4d5-90103ffb837c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_060560f7-ee5a-446e-b4d5-90103ffb837c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_cce53363-3c37-4ce3-a900-09620ad06532" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_cce53363-3c37-4ce3-a900-09620ad06532" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_53598cd5-ade2-436c-a08e-5dd637e68afd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiability"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_OperatingLeaseLiability_53598cd5-ade2-436c-a08e-5dd637e68afd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_d4f393a3-5731-410b-94b2-7d747e3392e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_d4f393a3-5731-410b-94b2-7d747e3392e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_586a563e-e973-4f42-8814-d3917c22a202" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_9de18494-744c-4b7c-9b53-4de78fca9b54" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_586a563e-e973-4f42-8814-d3917c22a202" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/LeasesMinimumAnnualLeasePaymentsDetails_1" xlink:type="simple" xlink:href="qlys-20231231.xsd#LeasesMinimumAnnualLeasePaymentsDetails_1"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/LeasesMinimumAnnualLeasePaymentsDetails_1" xlink:type="extended"/>
<link:roleRef roleURI="http://www.qualys.com/role/CommitmentandContingenciesRemainingPurchaseCommitmentsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#CommitmentandContingenciesRemainingPurchaseCommitmentsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/CommitmentandContingenciesRemainingPurchaseCommitmentsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_161fe7cf-8606-40a1-838e-57623a0d4f79" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_fae495b5-9ca5-4257-b134-0208af0faa98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInNextTwelveMonths"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_161fe7cf-8606-40a1-838e-57623a0d4f79" xlink:to="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_fae495b5-9ca5-4257-b134-0208af0faa98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_522f847c-87c7-4962-9677-4dbd12dd0988" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInSecondYear"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_161fe7cf-8606-40a1-838e-57623a0d4f79" xlink:to="loc_us-gaap_PurchaseObligationDueInSecondYear_522f847c-87c7-4962-9677-4dbd12dd0988" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_f353202a-3064-4e03-b7b2-3bfc09f38024" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInThirdYear"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_161fe7cf-8606-40a1-838e-57623a0d4f79" xlink:to="loc_us-gaap_PurchaseObligationDueInThirdYear_f353202a-3064-4e03-b7b2-3bfc09f38024" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFourthYear_aad598f7-c6d5-4bb6-a6b7-262c2686ff06" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligationDueInFourthYear"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_161fe7cf-8606-40a1-838e-57623a0d4f79" xlink:to="loc_us-gaap_PurchaseObligationDueInFourthYear_aad598f7-c6d5-4bb6-a6b7-262c2686ff06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_2b2d8fd2-0217-4199-8463-ed9fe117faa5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseObligation"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_161fe7cf-8606-40a1-838e-57623a0d4f79" xlink:to="loc_us-gaap_PurchaseObligation_2b2d8fd2-0217-4199-8463-ed9fe117faa5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationPreferredStockDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationPreferredStockDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationPreferredStockDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_effc9db3-3ed6-4d4e-94c5-2d676c351e5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_cf5cfc1c-d9ec-4e7d-8d78-0f61d0c4c6f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_effc9db3-3ed6-4d4e-94c5-2d676c351e5a" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_cf5cfc1c-d9ec-4e7d-8d78-0f61d0c4c6f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_d2d1a6ec-5427-4c7b-830e-9000d775a13c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_effc9db3-3ed6-4d4e-94c5-2d676c351e5a" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_d2d1a6ec-5427-4c7b-830e-9000d775a13c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_1272fc0c-dea5-4dc3-bcf6-9e1adeb41431" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_effc9db3-3ed6-4d4e-94c5-2d676c351e5a" xlink:to="loc_us-gaap_PreferredStockSharesIssued_1272fc0c-dea5-4dc3-bcf6-9e1adeb41431" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_786892ac-34e5-4871-aaa4-0b66983c9652" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_effc9db3-3ed6-4d4e-94c5-2d676c351e5a" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_786892ac-34e5-4871-aaa4-0b66983c9652" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationEquityIncentivePlanDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationEquityIncentivePlanDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationEquityIncentivePlanDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_c641e97c-5f16-43b6-9d6f-08cde9c905b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_d6533f8c-e0c1-499e-a943-47933cea5c85" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_c641e97c-5f16-43b6-9d6f-08cde9c905b4" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_d6533f8c-e0c1-499e-a943-47933cea5c85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_e0b36a61-9096-4dac-ab37-fb0b55a53226" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_d6533f8c-e0c1-499e-a943-47933cea5c85" xlink:to="loc_us-gaap_PlanNameAxis_e0b36a61-9096-4dac-ab37-fb0b55a53226" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_94acae0d-358d-4c9d-880b-16f6a9024957" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_e0b36a61-9096-4dac-ab37-fb0b55a53226" xlink:to="loc_us-gaap_PlanNameDomain_94acae0d-358d-4c9d-880b-16f6a9024957" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_The2012EquityIncentivePlanMember_980e2510-8f3a-437a-9dcf-67099cd26382" xlink:href="qlys-20231231.xsd#qlys_The2012EquityIncentivePlanMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_94acae0d-358d-4c9d-880b-16f6a9024957" xlink:to="loc_qlys_The2012EquityIncentivePlanMember_980e2510-8f3a-437a-9dcf-67099cd26382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_The2021EmployeeStockPurchasePlanMember_dad23d5d-b59c-49bb-9ddb-edb3d1ce0a3d" xlink:href="qlys-20231231.xsd#qlys_The2021EmployeeStockPurchasePlanMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_94acae0d-358d-4c9d-880b-16f6a9024957" xlink:to="loc_qlys_The2021EmployeeStockPurchasePlanMember_dad23d5d-b59c-49bb-9ddb-edb3d1ce0a3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_b9a01abb-ea49-414a-9026-bca3278cbf4b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_d6533f8c-e0c1-499e-a943-47933cea5c85" xlink:to="loc_srt_RangeAxis_b9a01abb-ea49-414a-9026-bca3278cbf4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8653d206-cd64-4ffa-9b8e-1ac5c1e75958" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_b9a01abb-ea49-414a-9026-bca3278cbf4b" xlink:to="loc_srt_RangeMember_8653d206-cd64-4ffa-9b8e-1ac5c1e75958" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_081a3e13-b5bd-468d-8fce-72972ca5485b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_8653d206-cd64-4ffa-9b8e-1ac5c1e75958" xlink:to="loc_srt_MinimumMember_081a3e13-b5bd-468d-8fce-72972ca5485b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_b2eb08e2-b648-4485-90f4-ee3fd5b0c575" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_8653d206-cd64-4ffa-9b8e-1ac5c1e75958" xlink:to="loc_srt_MaximumMember_b2eb08e2-b648-4485-90f4-ee3fd5b0c575" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_d6533f8c-e0c1-499e-a943-47933cea5c85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreaseShares_b3c1566c-4add-4310-9f0e-015e724ba946" xlink:href="qlys-20231231.xsd#qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreaseShares"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreaseShares_b3c1566c-4add-4310-9f0e-015e724ba946" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreasePercentOfSharesOutstanding_da844cfd-1335-4825-83ae-7ccd3dfdf6a3" xlink:href="qlys-20231231.xsd#qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreasePercentOfSharesOutstanding"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreasePercentOfSharesOutstanding_da844cfd-1335-4825-83ae-7ccd3dfdf6a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecrease_d9422759-7b7b-4d63-b1c0-2da1ac8906a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecrease"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecrease_d9422759-7b7b-4d63-b1c0-2da1ac8906a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_206ac285-e3f0-448e-913c-3d68721b283e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_206ac285-e3f0-448e-913c-3d68721b283e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_606fa09a-1fa2-4605-af40-5fda180b768a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_606fa09a-1fa2-4605-af40-5fda180b768a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_eeb73d2e-2855-4e9d-9ed6-d62bfc1d4357" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_eeb73d2e-2855-4e9d-9ed6-d62bfc1d4357" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_e9f692a2-ea8b-415f-b5f3-8e855f82fd50" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_e9f692a2-ea8b-415f-b5f3-8e855f82fd50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_c8197b1c-71f4-4de9-ae70-268c201cb3ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_c8197b1c-71f4-4de9-ae70-268c201cb3ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod_c6b153dd-9be4-473b-accc-e37fb22e3461" xlink:href="qlys-20231231.xsd#qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod_c6b153dd-9be4-473b-accc-e37fb22e3461" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_EmployeeStockPurchasePlanPercentageOfEligibleCompensationContributable_8a4e4040-2add-47f4-afb6-f953126082f2" xlink:href="qlys-20231231.xsd#qlys_EmployeeStockPurchasePlanPercentageOfEligibleCompensationContributable"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_qlys_EmployeeStockPurchasePlanPercentageOfEligibleCompensationContributable_8a4e4040-2add-47f4-afb6-f953126082f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_31be99da-349b-442a-a22e-6cd516ec09d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_31be99da-349b-442a-a22e-6cd516ec09d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_98d18cb5-dffa-439f-a979-acca15946806" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c8cfefef-4c5a-4cc2-aa6e-bd2e52f022d9" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_98d18cb5-dffa-439f-a979-acca15946806" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationSummaryofStockbasedCompensationExpenseDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationSummaryofStockbasedCompensationExpenseDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationSummaryofStockbasedCompensationExpenseDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_36dbcd35-da0e-442e-a82c-0f140ae2fa13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76a8af61-d90b-4c87-90bb-30386bdf08dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_36dbcd35-da0e-442e-a82c-0f140ae2fa13" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76a8af61-d90b-4c87-90bb-30386bdf08dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_3a5a10c1-fc02-4588-bcaf-bfe286056009" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76a8af61-d90b-4c87-90bb-30386bdf08dd" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_3a5a10c1-fc02-4588-bcaf-bfe286056009" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_7df8c842-d7e1-4083-b91d-15101adcb04c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementLocationDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_3a5a10c1-fc02-4588-bcaf-bfe286056009" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_7df8c842-d7e1-4083-b91d-15101adcb04c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_963cc754-245d-437e-a67f-fd5a23316ae5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfSalesMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7df8c842-d7e1-4083-b91d-15101adcb04c" xlink:to="loc_us-gaap_CostOfSalesMember_963cc754-245d-437e-a67f-fd5a23316ae5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_d60e636a-5acc-41d0-80cb-942e36be4241" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7df8c842-d7e1-4083-b91d-15101adcb04c" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_d60e636a-5acc-41d0-80cb-942e36be4241" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_9ec5aa06-6942-49b5-a588-9b960aec0cc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7df8c842-d7e1-4083-b91d-15101adcb04c" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_9ec5aa06-6942-49b5-a588-9b960aec0cc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_2d9bd5f5-9e00-4d28-aa89-e1207a14618a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_7df8c842-d7e1-4083-b91d-15101adcb04c" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_2d9bd5f5-9e00-4d28-aa89-e1207a14618a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29610a45-c4b0-4b6f-9232-7958768a884e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_76a8af61-d90b-4c87-90bb-30386bdf08dd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29610a45-c4b0-4b6f-9232-7958768a884e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_bb60f425-5d29-4aa1-85c8-ee2856d185e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29610a45-c4b0-4b6f-9232-7958768a884e" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_bb60f425-5d29-4aa1-85c8-ee2856d185e2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationStockbasedCompensationDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationStockbasedCompensationDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationStockbasedCompensationDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_52671e84-a0c7-4ba8-8157-3da4cd2a9da4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_398de9c3-e0f1-448e-9474-641117fcd1d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_52671e84-a0c7-4ba8-8157-3da4cd2a9da4" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_398de9c3-e0f1-448e-9474-641117fcd1d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_709d2d42-29f8-4f88-b368-b955a710d9d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_398de9c3-e0f1-448e-9474-641117fcd1d8" xlink:to="loc_us-gaap_AwardTypeAxis_709d2d42-29f8-4f88-b368-b955a710d9d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_435f4bc6-5a88-4c7f-a59a-a8c2bac3e8bd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_709d2d42-29f8-4f88-b368-b955a710d9d4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_435f4bc6-5a88-4c7f-a59a-a8c2bac3e8bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_11d6502f-8375-487d-8e48-e8f5d9b7bdc4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_435f4bc6-5a88-4c7f-a59a-a8c2bac3e8bd" xlink:to="loc_us-gaap_EmployeeStockOptionMember_11d6502f-8375-487d-8e48-e8f5d9b7bdc4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_c9b3e89d-434c-4a95-ace1-c2f8603a84fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_435f4bc6-5a88-4c7f-a59a-a8c2bac3e8bd" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_c9b3e89d-434c-4a95-ace1-c2f8603a84fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PerformanceBasedRestrictedStockUnitsMember_b5093ae7-b850-468e-b66f-800ea07b1ed7" xlink:href="qlys-20231231.xsd#qlys_PerformanceBasedRestrictedStockUnitsMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_435f4bc6-5a88-4c7f-a59a-a8c2bac3e8bd" xlink:to="loc_qlys_PerformanceBasedRestrictedStockUnitsMember_b5093ae7-b850-468e-b66f-800ea07b1ed7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ESPPSharesMember_8ebe43c7-457b-409b-ad99-91e0852f7774" xlink:href="qlys-20231231.xsd#qlys_ESPPSharesMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_435f4bc6-5a88-4c7f-a59a-a8c2bac3e8bd" xlink:to="loc_qlys_ESPPSharesMember_8ebe43c7-457b-409b-ad99-91e0852f7774" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_398de9c3-e0f1-448e-9474-641117fcd1d8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_0378af47-ef90-4732-afe4-e36dcf652c40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_0378af47-ef90-4732-afe4-e36dcf652c40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_c64d2619-6ddf-45dd-ba33-8a9b9f809832" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_c64d2619-6ddf-45dd-ba33-8a9b9f809832" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_ef3dc67a-ceb1-43ab-8a36-39040793972a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_ef3dc67a-ceb1-43ab-8a36-39040793972a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_567d8904-9c6b-4a22-9855-916ef4174825" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_567d8904-9c6b-4a22-9855-916ef4174825" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_a0b36fb6-9474-444f-8bc2-77509c9ee0b4" xlink:href="qlys-20231231.xsd#qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1fa47e13-5081-4308-9afa-fd106ea6e825" xlink:to="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardPerformancePeriod_a0b36fb6-9474-444f-8bc2-77509c9ee0b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationPerformanceBasedStockOptionsandRestrictedStockUnitsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationPerformanceBasedStockOptionsandRestrictedStockUnitsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationPerformanceBasedStockOptionsandRestrictedStockUnitsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_1db72797-a77e-46ac-b277-d008f7131621" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_1db72797-a77e-46ac-b277-d008f7131621" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_c137d6c5-051a-4038-aab9-fb0adb2988f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:to="loc_us-gaap_AwardTypeAxis_c137d6c5-051a-4038-aab9-fb0adb2988f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_393b0c88-1f22-4c71-99f6-7f6fcbc81883" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_c137d6c5-051a-4038-aab9-fb0adb2988f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_393b0c88-1f22-4c71-99f6-7f6fcbc81883" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_819766a7-446a-4ad8-9d7a-2f63454274b1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_393b0c88-1f22-4c71-99f6-7f6fcbc81883" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_819766a7-446a-4ad8-9d7a-2f63454274b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_f6199da7-490b-4ac8-8d11-d44168b75a7c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_393b0c88-1f22-4c71-99f6-7f6fcbc81883" xlink:to="loc_us-gaap_EmployeeStockOptionMember_f6199da7-490b-4ac8-8d11-d44168b75a7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PerformanceBasedRestrictedStockUnitsMember_4908b649-32bb-4aa9-91f2-00845efce804" xlink:href="qlys-20231231.xsd#qlys_PerformanceBasedRestrictedStockUnitsMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_393b0c88-1f22-4c71-99f6-7f6fcbc81883" xlink:to="loc_qlys_PerformanceBasedRestrictedStockUnitsMember_4908b649-32bb-4aa9-91f2-00845efce804" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_8c9de280-1433-404f-9ca5-963f2bf1c1aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:to="loc_us-gaap_VestingAxis_8c9de280-1433-404f-9ca5-963f2bf1c1aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_92290e13-0599-4d2e-a9d6-90f10299b07d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingAxis_8c9de280-1433-404f-9ca5-963f2bf1c1aa" xlink:to="loc_us-gaap_VestingDomain_92290e13-0599-4d2e-a9d6-90f10299b07d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_TimeBasedSharedBasedCompensationMember_624ecaba-4dc7-4934-a0a8-1e04f2e3bcd3" xlink:href="qlys-20231231.xsd#qlys_TimeBasedSharedBasedCompensationMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_92290e13-0599-4d2e-a9d6-90f10299b07d" xlink:to="loc_qlys_TimeBasedSharedBasedCompensationMember_624ecaba-4dc7-4934-a0a8-1e04f2e3bcd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PerformanceSharesTrancheThreeMember_ace73ad2-2d3d-42f7-a79b-c5054614c842" xlink:href="qlys-20231231.xsd#qlys_PerformanceSharesTrancheThreeMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_92290e13-0599-4d2e-a9d6-90f10299b07d" xlink:to="loc_qlys_PerformanceSharesTrancheThreeMember_ace73ad2-2d3d-42f7-a79b-c5054614c842" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_79d1813b-497b-4656-81e7-278ecf1faf49" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:to="loc_srt_RangeAxis_79d1813b-497b-4656-81e7-278ecf1faf49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_768671fb-d423-45ac-bfd0-0e2c4be3f5c1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_79d1813b-497b-4656-81e7-278ecf1faf49" xlink:to="loc_srt_RangeMember_768671fb-d423-45ac-bfd0-0e2c4be3f5c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_30ed74f7-fdf3-4e08-aa5a-15f8c6783c28" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_768671fb-d423-45ac-bfd0-0e2c4be3f5c1" xlink:to="loc_srt_MinimumMember_30ed74f7-fdf3-4e08-aa5a-15f8c6783c28" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_1a1371d7-07b7-4ee6-b9fa-490128993e6d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_768671fb-d423-45ac-bfd0-0e2c4be3f5c1" xlink:to="loc_srt_MaximumMember_1a1371d7-07b7-4ee6-b9fa-490128993e6d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_f255342a-2c7b-4f0a-ac34-270d3380f9eb" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:to="loc_srt_TitleOfIndividualAxis_f255342a-2c7b-4f0a-ac34-270d3380f9eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_905a87af-8e9f-41d1-be3a-1914109a2cea" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualAxis_f255342a-2c7b-4f0a-ac34-270d3380f9eb" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_905a87af-8e9f-41d1-be3a-1914109a2cea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PresidentAndChiefExecutiveOfficerMember_4dece2a6-d970-4577-813a-c279994b8973" xlink:href="qlys-20231231.xsd#qlys_PresidentAndChiefExecutiveOfficerMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_905a87af-8e9f-41d1-be3a-1914109a2cea" xlink:to="loc_qlys_PresidentAndChiefExecutiveOfficerMember_4dece2a6-d970-4577-813a-c279994b8973" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_7cc603f8-6efe-48bd-a83a-bdbc06336fd1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ExecutiveOfficerMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_905a87af-8e9f-41d1-be3a-1914109a2cea" xlink:to="loc_srt_ExecutiveOfficerMember_7cc603f8-6efe-48bd-a83a-bdbc06336fd1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1edb2178-eb35-4b3f-ae80-2e63401617b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_34860f23-99fb-4a44-b541-e8b46b7c983a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_34860f23-99fb-4a44-b541-e8b46b7c983a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriodNumberOfQuarterlyPeriods_c19bb2b2-0a97-4816-9f94-ffa5fb1d4ffd" xlink:href="qlys-20231231.xsd#qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriodNumberOfQuarterlyPeriods"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriodNumberOfQuarterlyPeriods_c19bb2b2-0a97-4816-9f94-ffa5fb1d4ffd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_2095553e-46ec-4d1f-95ce-c1f5f42f24d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_2095553e-46ec-4d1f-95ce-c1f5f42f24d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_e08b32f9-507b-44f3-97d2-40b954e58363" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_e08b32f9-507b-44f3-97d2-40b954e58363" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardTargetPercentage_a8361200-58d0-4e72-a008-8909835160ac" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardTargetPercentage"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardTargetPercentage_a8361200-58d0-4e72-a008-8909835160ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsTargetNumberOfShares_a614c080-8e59-48a0-b994-f1bbbd6b715b" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsTargetNumberOfShares"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsTargetNumberOfShares_a614c080-8e59-48a0-b994-f1bbbd6b715b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationTerminationPeriodTrigger_e8b5f83a-f0a0-44cd-a876-f476e78a869a" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationTerminationPeriodTrigger"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_qlys_SharebasedCompensationTerminationPeriodTrigger_e8b5f83a-f0a0-44cd-a876-f476e78a869a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationPercentageOfSharesThatWillVestUponTrigger_d9ce33c8-a212-44b4-ac6b-e82f052d8d80" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationPercentageOfSharesThatWillVestUponTrigger"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_qlys_SharebasedCompensationPercentageOfSharesThatWillVestUponTrigger_d9ce33c8-a212-44b4-ac6b-e82f052d8d80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodAsAPercentageOfTarget_46f29900-3a65-4254-97f1-b79db5d999a3" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodAsAPercentageOfTarget"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodAsAPercentageOfTarget_46f29900-3a65-4254-97f1-b79db5d999a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber_0b52e5cf-db2e-4a7c-b971-eebbc5fcf210" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAcceleratedVestingNumber_0b52e5cf-db2e-4a7c-b971-eebbc5fcf210" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_fbcb6309-17c0-4a6e-a5d5-1f8e7d300a36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_fbcb6309-17c0-4a6e-a5d5-1f8e7d300a36" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_f0e239ee-5f88-4c79-8830-b0dfc1a1956a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_f0e239ee-5f88-4c79-8830-b0dfc1a1956a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_a0370942-20bc-4180-a63d-93925f82e6ac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_a0370942-20bc-4180-a63d-93925f82e6ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_4e21c74b-bcc5-4e69-be71-4ec800646656" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f6638f3c-d3c9-48f6-9b73-142f4c5a6e18" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_4e21c74b-bcc5-4e69-be71-4ec800646656" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationFairValueAssumptionsStockOptionsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationFairValueAssumptionsStockOptionsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationFairValueAssumptionsStockOptionsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_6b1b3124-02be-4548-b949-d0a8587c57fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a317def1-976e-4b56-8f01-544e6bd50e0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6b1b3124-02be-4548-b949-d0a8587c57fa" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a317def1-976e-4b56-8f01-544e6bd50e0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_9456a0a6-ebab-4ba4-a177-42a272881293" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a317def1-976e-4b56-8f01-544e6bd50e0a" xlink:to="loc_srt_RangeAxis_9456a0a6-ebab-4ba4-a177-42a272881293" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_7dfa2882-a039-4d70-ba64-82afbe2c0dc8" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_9456a0a6-ebab-4ba4-a177-42a272881293" xlink:to="loc_srt_RangeMember_7dfa2882-a039-4d70-ba64-82afbe2c0dc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_548e09df-73e0-42fe-8b76-c37f5cb34d61" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_7dfa2882-a039-4d70-ba64-82afbe2c0dc8" xlink:to="loc_srt_MinimumMember_548e09df-73e0-42fe-8b76-c37f5cb34d61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_5ff825b8-1ee9-494c-a322-1b06cd7ddb65" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_7dfa2882-a039-4d70-ba64-82afbe2c0dc8" xlink:to="loc_srt_MaximumMember_5ff825b8-1ee9-494c-a322-1b06cd7ddb65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a317def1-976e-4b56-8f01-544e6bd50e0a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c983efb1-afdd-4801-a773-cd0309809210" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c983efb1-afdd-4801-a773-cd0309809210" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_71e300fd-2087-4109-82a4-4c99d67ed340" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_71e300fd-2087-4109-82a4-4c99d67ed340" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_2bf188ee-4b8a-455e-b770-e964afd9dc9b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_2bf188ee-4b8a-455e-b770-e964afd9dc9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_44ac62d7-bfec-40eb-82c4-8af3ac30a878" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_44ac62d7-bfec-40eb-82c4-8af3ac30a878" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_34840c02-19d1-4e3b-9e6e-6f33cf822fe0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ee1bf5a5-3b63-4b50-bc37-7c117ca77613" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_34840c02-19d1-4e3b-9e6e-6f33cf822fe0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationSharebasedCompensationandStockOptionsActivityDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationSharebasedCompensationandStockOptionsActivityDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationSharebasedCompensationandStockOptionsActivityDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_7aa259f7-fdaf-4e12-a1f8-9acaadb3f600" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_7aa259f7-fdaf-4e12-a1f8-9acaadb3f600" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_00b25a89-d370-42ab-8179-aa87bbb98ca6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_00b25a89-d370-42ab-8179-aa87bbb98ca6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_f7f6eb8f-57f6-4eef-b1a5-1ffc91bc279c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_f7f6eb8f-57f6-4eef-b1a5-1ffc91bc279c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_f30d2604-6766-40f5-a95b-baa5394dab27" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_f30d2604-6766-40f5-a95b-baa5394dab27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_75689c4d-7869-4730-bf57-5858db1e999c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_75689c4d-7869-4730-bf57-5858db1e999c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_4d279c1a-763e-4b41-bd82-55193300e084" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_c839ce21-15a8-4247-868b-8b5e7a8f6fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_4d279c1a-763e-4b41-bd82-55193300e084" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_7aa259f7-fdaf-4e12-a1f8-9acaadb3f600" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_c4baca55-d96b-4663-8906-1a30dcc020e5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_c4baca55-d96b-4663-8906-1a30dcc020e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_9ec9aaba-9a08-400a-b446-fde9f5170f50" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_9ec9aaba-9a08-400a-b446-fde9f5170f50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_1763056c-36c4-405d-9b0e-b076e81a6fe6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_1763056c-36c4-405d-9b0e-b076e81a6fe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_cad6e1d5-bf27-4ca5-bc83-f49277cd066c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_cad6e1d5-bf27-4ca5-bc83-f49277cd066c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_30d3de9b-8aba-45a6-bb1e-a4ce03bd7cec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_a2307413-51c8-4816-ae9c-786e0ac999b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_30d3de9b-8aba-45a6-bb1e-a4ce03bd7cec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_7aa259f7-fdaf-4e12-a1f8-9acaadb3f600" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_86c3b4fb-7011-4d3d-b334-b6c50dc53cb2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_86c3b4fb-7011-4d3d-b334-b6c50dc53cb2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_5e6566c0-f61f-4efd-92c9-4e27eb613e6d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_5e6566c0-f61f-4efd-92c9-4e27eb613e6d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_ef81b5b0-e838-4d1b-9b14-eea319d16d74" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_ef81b5b0-e838-4d1b-9b14-eea319d16d74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_43cb1af7-c126-488b-8dc0-5801726a25e4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1_43cb1af7-c126-488b-8dc0-5801726a25e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_67aef937-17d2-4532-96f4-899a6434c602" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_67aef937-17d2-4532-96f4-899a6434c602" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_282383bd-a9d3-4495-8a6e-1e3d52e7e1cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_282383bd-a9d3-4495-8a6e-1e3d52e7e1cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_0f050009-f81f-4c19-a3d2-500fd3e51fb3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_0f050009-f81f-4c19-a3d2-500fd3e51fb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_3b5bf708-7d69-492d-8f5f-89475235f702" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_3b5bf708-7d69-492d-8f5f-89475235f702" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_25855fad-82fd-49c7-9da7-3d348209c03f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_25855fad-82fd-49c7-9da7-3d348209c03f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_b200950f-c9e3-4792-b129-3ab2674f5d97" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_c736c56b-a748-4472-8229-0d31b2634b77" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue_b200950f-c9e3-4792-b129-3ab2674f5d97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_64cc7e26-0d8a-4f7b-b38f-7a7599388674" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_7aa259f7-fdaf-4e12-a1f8-9acaadb3f600" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_64cc7e26-0d8a-4f7b-b38f-7a7599388674" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationSummaryofRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationSummaryofRestrictedStockUnitActivityDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationSummaryofRestrictedStockUnitActivityDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_a4e0109c-d28d-4c4c-86b1-5c519c38d9d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c202cbf9-1005-4d9e-8433-5c9aa45a5e01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_a4e0109c-d28d-4c4c-86b1-5c519c38d9d0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c202cbf9-1005-4d9e-8433-5c9aa45a5e01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_bfbdccfe-afc1-4043-b443-9256da468aff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c202cbf9-1005-4d9e-8433-5c9aa45a5e01" xlink:to="loc_us-gaap_AwardTypeAxis_bfbdccfe-afc1-4043-b443-9256da468aff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2ce9cfa8-4671-4e1a-9dbe-40caed04b810" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_bfbdccfe-afc1-4043-b443-9256da468aff" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2ce9cfa8-4671-4e1a-9dbe-40caed04b810" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_8e297a78-5b97-4034-ab87-124c89e96510" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2ce9cfa8-4671-4e1a-9dbe-40caed04b810" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_8e297a78-5b97-4034-ab87-124c89e96510" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PerformanceBasedRestrictedStockUnitsMember_9406a5f1-0f2e-4e7c-a352-8578ea74c26e" xlink:href="qlys-20231231.xsd#qlys_PerformanceBasedRestrictedStockUnitsMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2ce9cfa8-4671-4e1a-9dbe-40caed04b810" xlink:to="loc_qlys_PerformanceBasedRestrictedStockUnitsMember_9406a5f1-0f2e-4e7c-a352-8578ea74c26e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_90c7a864-d042-4c06-aeaa-9fa55ca552d0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c202cbf9-1005-4d9e-8433-5c9aa45a5e01" xlink:to="loc_srt_TitleOfIndividualAxis_90c7a864-d042-4c06-aeaa-9fa55ca552d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualAxis_90c7a864-d042-4c06-aeaa-9fa55ca552d0" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ExecutiveOfficer1Member_70641618-c350-40dc-ab59-ce1ac6a420d1" xlink:href="qlys-20231231.xsd#qlys_ExecutiveOfficer1Member"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:to="loc_qlys_ExecutiveOfficer1Member_70641618-c350-40dc-ab59-ce1ac6a420d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_d4d3283e-2daf-45d9-b006-908423f86907" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ExecutiveOfficerMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:to="loc_srt_ExecutiveOfficerMember_d4d3283e-2daf-45d9-b006-908423f86907" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ExecutiveOfficer2Member_2e4f7b9a-31b2-4f4a-a853-c8065b38788e" xlink:href="qlys-20231231.xsd#qlys_ExecutiveOfficer2Member"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:to="loc_qlys_ExecutiveOfficer2Member_2e4f7b9a-31b2-4f4a-a853-c8065b38788e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ExecutiveOfficer3Member_1ccc97ea-77f0-48fc-838a-ae7df06cc60c" xlink:href="qlys-20231231.xsd#qlys_ExecutiveOfficer3Member"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:to="loc_qlys_ExecutiveOfficer3Member_1ccc97ea-77f0-48fc-838a-ae7df06cc60c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ExecutiveOfficer4Member_e35fb761-c34d-4c01-910b-16e19b836ead" xlink:href="qlys-20231231.xsd#qlys_ExecutiveOfficer4Member"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_d1423b78-bfde-41a3-aacc-aac0fe819d88" xlink:to="loc_qlys_ExecutiveOfficer4Member_e35fb761-c34d-4c01-910b-16e19b836ead" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_caae413b-0285-41bb-b17a-72f0792cfd85" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_c202cbf9-1005-4d9e-8433-5c9aa45a5e01" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_caae413b-0285-41bb-b17a-72f0792cfd85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_caae413b-0285-41bb-b17a-72f0792cfd85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_ee658ec2-1893-41b8-bb53-cd4bd7db6674" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_ee658ec2-1893-41b8-bb53-cd4bd7db6674" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_31658827-8c9d-492c-8047-183ecb4d355e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_31658827-8c9d-492c-8047-183ecb4d355e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_c880de27-8a24-4990-9138-4d4d0bf6b9dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_c880de27-8a24-4990-9138-4d4d0bf6b9dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_40fb6262-eff0-4a92-963b-ff1147f67017" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_40fb6262-eff0-4a92-963b-ff1147f67017" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_cde76b68-2f9f-4fde-a6c5-942ae2e93a1b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_ee2f36eb-efc8-41ab-a365-07e9f3b730eb" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_cde76b68-2f9f-4fde-a6c5-942ae2e93a1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestOutstandingNumber_64d32756-6725-4dad-b06f-9931940b4b6f" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestOutstandingNumber"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_caae413b-0285-41bb-b17a-72f0792cfd85" xlink:to="loc_qlys_SharebasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestOutstandingNumber_64d32756-6725-4dad-b06f-9931940b4b6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_caae413b-0285-41bb-b17a-72f0792cfd85" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_0f397f59-9907-481f-ba0c-fe9eaa9efc40" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_0f397f59-9907-481f-ba0c-fe9eaa9efc40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c17262dd-aa94-455a-bfbf-a603470c3019" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c17262dd-aa94-455a-bfbf-a603470c3019" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_5feabc71-1262-44c8-982e-36c69c383341" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_5feabc71-1262-44c8-982e-36c69c383341" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_4ea38ef0-62f9-405c-ae1e-ead4b13aec16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_4ea38ef0-62f9-405c-ae1e-ead4b13aec16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c4db998e-5171-4f1e-a583-ac5a724ce4fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_f18c9929-aa57-4c68-8f5e-482ce06bf228" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c4db998e-5171-4f1e-a583-ac5a724ce4fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_f91868ed-7798-48f2-a7ed-b1b5079c4df5" xlink:href="qlys-20231231.xsd#qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_caae413b-0285-41bb-b17a-72f0792cfd85" xlink:to="loc_qlys_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_f91868ed-7798-48f2-a7ed-b1b5079c4df5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ed9197ab-0e12-44d5-b01a-cf892fee8b99" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9fce46d4-58e9-4edd-92be-425245f6df8c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ed9197ab-0e12-44d5-b01a-cf892fee8b99" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9fce46d4-58e9-4edd-92be-425245f6df8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_446d7e6a-ed87-4e8c-947f-2a20225910e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9fce46d4-58e9-4edd-92be-425245f6df8c" xlink:to="loc_us-gaap_AwardTypeAxis_446d7e6a-ed87-4e8c-947f-2a20225910e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a6be0584-a3c4-48d0-9b02-085e698b2373" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_446d7e6a-ed87-4e8c-947f-2a20225910e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a6be0584-a3c4-48d0-9b02-085e698b2373" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_be92d43e-109c-4040-b723-abf05f93fe38" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a6be0584-a3c4-48d0-9b02-085e698b2373" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_be92d43e-109c-4040-b723-abf05f93fe38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d116b39b-22d2-45df-96dc-91d14a7337c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9fce46d4-58e9-4edd-92be-425245f6df8c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d116b39b-22d2-45df-96dc-91d14a7337c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_68158b96-bbff-4f1a-b1b4-cd82b4617daa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d116b39b-22d2-45df-96dc-91d14a7337c8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_68158b96-bbff-4f1a-b1b4-cd82b4617daa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod_6b12899f-2d7a-4c24-83f8-b6f6458c7a7e" xlink:href="qlys-20231231.xsd#qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d116b39b-22d2-45df-96dc-91d14a7337c8" xlink:to="loc_qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod_6b12899f-2d7a-4c24-83f8-b6f6458c7a7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_3eb851ee-162f-483d-b59c-d2f4908639b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d116b39b-22d2-45df-96dc-91d14a7337c8" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_3eb851ee-162f-483d-b59c-d2f4908639b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationEmployeeStockPurchasePlanValuationAssumptionsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationEmployeeStockPurchasePlanValuationAssumptionsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationEmployeeStockPurchasePlanValuationAssumptionsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_0b0dea5b-79e4-4647-9b7e-0173bfb98053" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7ae5585b-b521-46f1-8b4b-f35916668dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_0b0dea5b-79e4-4647-9b7e-0173bfb98053" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7ae5585b-b521-46f1-8b4b-f35916668dcf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_d4550b2f-99fb-4ed2-81e2-1529172dc1c7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7ae5585b-b521-46f1-8b4b-f35916668dcf" xlink:to="loc_us-gaap_PlanNameAxis_d4550b2f-99fb-4ed2-81e2-1529172dc1c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_f1d6a899-2f5a-417b-9716-2df52523972f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_d4550b2f-99fb-4ed2-81e2-1529172dc1c7" xlink:to="loc_us-gaap_PlanNameDomain_f1d6a899-2f5a-417b-9716-2df52523972f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_The2021EmployeeStockPurchasePlanMember_70881802-872a-4bc7-b8a8-67fe8253e621" xlink:href="qlys-20231231.xsd#qlys_The2021EmployeeStockPurchasePlanMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_f1d6a899-2f5a-417b-9716-2df52523972f" xlink:to="loc_qlys_The2021EmployeeStockPurchasePlanMember_70881802-872a-4bc7-b8a8-67fe8253e621" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7ae5585b-b521-46f1-8b4b-f35916668dcf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_cd1a6a9a-99fa-4416-ae0b-bbf22e72315a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_cd1a6a9a-99fa-4416-ae0b-bbf22e72315a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_7bf04d95-6699-4e0e-b1ac-60f0d56108c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_7bf04d95-6699-4e0e-b1ac-60f0d56108c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_8a04979b-8dec-41c2-9d99-398fee3be45f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_8a04979b-8dec-41c2-9d99-398fee3be45f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_e6112b05-a320-44b2-8afd-2db83833a466" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_e6112b05-a320-44b2-8afd-2db83833a466" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_4c9e4ed9-e91d-4713-968b-246998622c11" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_4c9e4ed9-e91d-4713-968b-246998622c11" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_691bb6d4-4985-4323-95af-a37a9573e0c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_691bb6d4-4985-4323-95af-a37a9573e0c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_e30a57cf-6cd5-4d9e-b9bb-382a8490ad9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_348f1551-9b8d-40d8-9bc7-35497a13b457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_e30a57cf-6cd5-4d9e-b9bb-382a8490ad9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationScheduleofRepurchaseAgreementsDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationScheduleofRepurchaseAgreementsDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationScheduleofRepurchaseAgreementsDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_1ad90ac2-45c3-4bc0-8055-9b9589c39a8c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_StockRepurchaseProgramRollForward_a0b307ae-35d7-49f7-917d-e0216eb997a0" xlink:href="qlys-20231231.xsd#qlys_StockRepurchaseProgramRollForward"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_1ad90ac2-45c3-4bc0-8055-9b9589c39a8c" xlink:to="loc_qlys_StockRepurchaseProgramRollForward_a0b307ae-35d7-49f7-917d-e0216eb997a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_37d3a284-56fa-4178-aa20-4dff87ea0da8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_qlys_StockRepurchaseProgramRollForward_a0b307ae-35d7-49f7-917d-e0216eb997a0" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_37d3a284-56fa-4178-aa20-4dff87ea0da8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationShareRepurchaseProgramDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#StockholdersEquityandStockbasedCompensationShareRepurchaseProgramDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/StockholdersEquityandStockbasedCompensationShareRepurchaseProgramDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ab4f9dad-b758-4a41-91e1-e475cb5bde50" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_bbe5679c-1748-480c-a386-187b98eb26a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ab4f9dad-b758-4a41-91e1-e475cb5bde50" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_bbe5679c-1748-480c-a386-187b98eb26a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_3c289ebe-73dc-47f5-86c5-749d2e3ccbad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_bbe5679c-1748-480c-a386-187b98eb26a5" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_3c289ebe-73dc-47f5-86c5-749d2e3ccbad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_14073608-def8-4d72-9e14-5376c884e43b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_3c289ebe-73dc-47f5-86c5-749d2e3ccbad" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_14073608-def8-4d72-9e14-5376c884e43b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_80b16d3b-94e7-4004-bbfe-d786cfeedc4f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_14073608-def8-4d72-9e14-5376c884e43b" xlink:to="loc_us-gaap_SubsequentEventMember_80b16d3b-94e7-4004-bbfe-d786cfeedc4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_bbe5679c-1748-480c-a386-187b98eb26a5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_StockRepurchaseProgramAdditionalAuthorizedAmount_93d59ca1-9e23-481c-acd5-58de680727bb" xlink:href="qlys-20231231.xsd#qlys_StockRepurchaseProgramAdditionalAuthorizedAmount"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:to="loc_qlys_StockRepurchaseProgramAdditionalAuthorizedAmount_93d59ca1-9e23-481c-acd5-58de680727bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_2f2bdbbe-3a43-4f4e-b23d-929edc3de292" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_2f2bdbbe-3a43-4f4e-b23d-929edc3de292" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_a36bbe51-dcfc-4028-a5ae-b2e9f0c90623" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_a36bbe51-dcfc-4028-a5ae-b2e9f0c90623" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_18744a53-6d76-4e79-baf5-6bf1b38db738" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_18744a53-6d76-4e79-baf5-6bf1b38db738" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_a4a6e84d-1971-4407-b639-d850ca7a532d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_67861f47-f4ff-432e-ab65-ea60799dcdd1" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_a4a6e84d-1971-4407-b639-d850ca7a532d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/EmployeeBenefitPlanDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#EmployeeBenefitPlanDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/EmployeeBenefitPlanDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_c9cdf2bd-0b7b-45bb-8a8b-d93c8451e16a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_457fa391-d705-443f-b073-8999f882071c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_c9cdf2bd-0b7b-45bb-8a8b-d93c8451e16a" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_457fa391-d705-443f-b073-8999f882071c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_37f8c381-58c1-4459-8389-110cae4099e7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_c9cdf2bd-0b7b-45bb-8a8b-d93c8451e16a" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_37f8c381-58c1-4459-8389-110cae4099e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesScheduleofIncomebeforeIncomeTaxDomesticandForeignDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesScheduleofIncomebeforeIncomeTaxDomesticandForeignDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesScheduleofIncomebeforeIncomeTaxDomesticandForeignDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_306caf8c-70f9-4120-854e-7b333fb33e76" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_a722eac8-1a24-42fe-a849-9ad73738310e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_306caf8c-70f9-4120-854e-7b333fb33e76" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_a722eac8-1a24-42fe-a849-9ad73738310e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_c048a4f1-8d0d-438c-9547-b6aed0cf115b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_306caf8c-70f9-4120-854e-7b333fb33e76" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_c048a4f1-8d0d-438c-9547-b6aed0cf115b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_86f98d1c-7282-4b56-8808-20bae35dac1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_306caf8c-70f9-4120-854e-7b333fb33e76" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_86f98d1c-7282-4b56-8808-20bae35dac1a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesScheduleofComponentsofIncomeTaxExpenseBenefitDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesScheduleofComponentsofIncomeTaxExpenseBenefitDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesScheduleofComponentsofIncomeTaxExpenseBenefitDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_abf0fd25-aeab-4078-a013-8c034173ad1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_acba3263-b375-444b-8962-87126cb9f937" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_abf0fd25-aeab-4078-a013-8c034173ad1f" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_acba3263-b375-444b-8962-87126cb9f937" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_8ce78b0b-e9e0-4836-9ca1-0b38981fc864" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentFederalTaxExpenseBenefit"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_acba3263-b375-444b-8962-87126cb9f937" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_8ce78b0b-e9e0-4836-9ca1-0b38981fc864" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_587decfd-93ce-4944-8ee3-f8e8fdc5cce2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_acba3263-b375-444b-8962-87126cb9f937" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_587decfd-93ce-4944-8ee3-f8e8fdc5cce2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_3af3fc9f-a274-4cd2-a58e-514b4a2b84ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentForeignTaxExpenseBenefit"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_acba3263-b375-444b-8962-87126cb9f937" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_3af3fc9f-a274-4cd2-a58e-514b4a2b84ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_950e4e2c-bafa-4eab-a602-56bcb80ec6b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_acba3263-b375-444b-8962-87126cb9f937" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_950e4e2c-bafa-4eab-a602-56bcb80ec6b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_e4ab6ce7-e132-4b04-88b9-10ffed596d0c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_abf0fd25-aeab-4078-a013-8c034173ad1f" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_e4ab6ce7-e132-4b04-88b9-10ffed596d0c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_5e55a35e-211c-4bf3-b5ac-b0f63e09a510" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_e4ab6ce7-e132-4b04-88b9-10ffed596d0c" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_5e55a35e-211c-4bf3-b5ac-b0f63e09a510" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_c6d95f09-7137-4182-8038-62043b93e211" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_e4ab6ce7-e132-4b04-88b9-10ffed596d0c" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_c6d95f09-7137-4182-8038-62043b93e211" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_6be042d3-1053-48d4-bdbb-d0fcce07615a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_e4ab6ce7-e132-4b04-88b9-10ffed596d0c" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_6be042d3-1053-48d4-bdbb-d0fcce07615a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_62697af6-b7b3-41bb-836a-0c6394466b7f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_e4ab6ce7-e132-4b04-88b9-10ffed596d0c" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_62697af6-b7b3-41bb-836a-0c6394466b7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_2d8b67ac-b2e1-4318-928e-d38bcbfed73e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_abf0fd25-aeab-4078-a013-8c034173ad1f" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_2d8b67ac-b2e1-4318-928e-d38bcbfed73e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesScheduleofEffectiveIncomeTaxRateReconciliationDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesScheduleofEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_5c61a85c-d04d-4a9e-80d1-4d1dd11ad2d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_5c61a85c-d04d-4a9e-80d1-4d1dd11ad2d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_cd738287-9d24-42e1-9dd1-eaac41384b25" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_cd738287-9d24-42e1-9dd1-eaac41384b25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_372370ec-8c44-4838-88ad-e5a27d55c4ed" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_372370ec-8c44-4838-88ad-e5a27d55c4ed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent_5ba3051e-8974-4ce9-9f27-7ac1539055d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent_5ba3051e-8974-4ce9-9f27-7ac1539055d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_6cf823ee-c661-48d1-b469-4356fabb912d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_6cf823ee-c661-48d1-b469-4356fabb912d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_890d5194-94af-4377-ad33-ae80b4e6dadc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_890d5194-94af-4377-ad33-ae80b4e6dadc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent_72d82763-103d-4cd3-a183-a18a54898b01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationFdiiPercent_72d82763-103d-4cd3-a183-a18a54898b01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_d3387248-f105-4472-b3d5-a55c9541eb3f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_d3387248-f105-4472-b3d5-a55c9541eb3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_5c3c4447-6e01-447d-aa66-450575110055" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_5c3c4447-6e01-447d-aa66-450575110055" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_1b98c17c-2cb2-4505-a0e4-0ac0394b8982" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_c1054853-9775-46fc-ab42-97b67142a15a" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_1b98c17c-2cb2-4505-a0e4-0ac0394b8982" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesScheduleofDeferredTaxAssetsandLiabilitiesDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_98f2c7d6-6e84-4ca9-9e91-2fdfc9deb26d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNetAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_98f2c7d6-6e84-4ca9-9e91-2fdfc9deb26d" xlink:to="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch_4bf2d819-9f56-4348-9b87-ea6d1c786462" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch_4bf2d819-9f56-4348-9b87-ea6d1c786462" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_f610d953-c7ac-48cb-8e8d-1f08d06361fb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_f610d953-c7ac-48cb-8e8d-1f08d06361fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_fc7137c3-f5f4-44f9-946c-9a2932d3ad9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_fc7137c3-f5f4-44f9-946c-9a2932d3ad9d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_91844bfb-27d5-49d5-a8b1-c7c2679ca2b5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsDeferredIncome"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_91844bfb-27d5-49d5-a8b1-c7c2679ca2b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_DeferredTaxAssetsOperatingLeaseLiabilities_3d9f02b5-90f3-4f4c-9001-3b5f8a34b797" xlink:href="qlys-20231231.xsd#qlys_DeferredTaxAssetsOperatingLeaseLiabilities"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_qlys_DeferredTaxAssetsOperatingLeaseLiabilities_3d9f02b5-90f3-4f4c-9001-3b5f8a34b797" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_ef487083-7bed-4e27-a88d-862036cb9d1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_ef487083-7bed-4e27-a88d-862036cb9d1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_842c62e7-8de1-4760-bec6-76f93ffbf509" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_842c62e7-8de1-4760-bec6-76f93ffbf509" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment_49e42bfc-1deb-4d31-bf89-173f45494f69" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment_49e42bfc-1deb-4d31-bf89-173f45494f69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_2b693eb5-36b8-462a-855f-3c7071278b2e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOther"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_2b693eb5-36b8-462a-855f-3c7071278b2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_3ea7fd61-2ebd-4501-b536-c022a617cf83" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGross"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_3ea7fd61-2ebd-4501-b536-c022a617cf83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_0a8098ea-81dd-4c82-81aa-9e8d7590dbf2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_0a8098ea-81dd-4c82-81aa-9e8d7590dbf2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_837b7afd-7286-4661-8267-15b9ccdd0cdf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNet"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_253005fe-35e3-47a1-b528-718417cbd59a" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_837b7afd-7286-4661-8267-15b9ccdd0cdf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract_63dbd860-dc02-4d82-a801-0cb188207aa8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_98f2c7d6-6e84-4ca9-9e91-2fdfc9deb26d" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesAbstract_63dbd860-dc02-4d82-a801-0cb188207aa8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06052df7-c21a-4943-9582-b2d062720a55" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_63dbd860-dc02-4d82-a801-0cb188207aa8" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_06052df7-c21a-4943-9582-b2d062720a55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_DeferredLiabilitiesRightofuseAssets_d59ca51e-02ab-401f-b939-9f461a5825d8" xlink:href="qlys-20231231.xsd#qlys_DeferredLiabilitiesRightofuseAssets"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_63dbd860-dc02-4d82-a801-0cb188207aa8" xlink:to="loc_qlys_DeferredLiabilitiesRightofuseAssets_d59ca51e-02ab-401f-b939-9f461a5825d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_DeferredTaxLiabilitiesDeferredCommission_66f2a8a9-5046-43c3-9cd8-9f90cbcf93a6" xlink:href="qlys-20231231.xsd#qlys_DeferredTaxLiabilitiesDeferredCommission"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_63dbd860-dc02-4d82-a801-0cb188207aa8" xlink:to="loc_qlys_DeferredTaxLiabilitiesDeferredCommission_66f2a8a9-5046-43c3-9cd8-9f90cbcf93a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_4a4b7c75-a538-4158-a4b4-8e007f5ac2bf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_63dbd860-dc02-4d82-a801-0cb188207aa8" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_4a4b7c75-a538-4158-a4b4-8e007f5ac2bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_cc7098a6-4152-4699-a825-0b11d37d7750" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_98f2c7d6-6e84-4ca9-9e91-2fdfc9deb26d" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_cc7098a6-4152-4699-a825-0b11d37d7750" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_7fa655f9-54dd-460c-803e-31027a45e837" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyTable_9d4b0c54-aa75-4613-ac85-cb7e3880010f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxContingencyTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_7fa655f9-54dd-460c-803e-31027a45e837" xlink:to="loc_us-gaap_IncomeTaxContingencyTable_9d4b0c54-aa75-4613-ac85-cb7e3880010f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_7f6cd6cc-69ba-45e2-afb6-c2907dcc0cde" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_9d4b0c54-aa75-4613-ac85-cb7e3880010f" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_7f6cd6cc-69ba-45e2-afb6-c2907dcc0cde" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_99a3d707-c8e9-4f6e-8131-d528d9cc5456" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_7f6cd6cc-69ba-45e2-afb6-c2907dcc0cde" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_99a3d707-c8e9-4f6e-8131-d528d9cc5456" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_0222697d-9503-4fab-ad8d-89040d39b4cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCountryMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_99a3d707-c8e9-4f6e-8131-d528d9cc5456" xlink:to="loc_us-gaap_ForeignCountryMember_0222697d-9503-4fab-ad8d-89040d39b4cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems_71edd982-8e64-46e5-a883-37c09b4a4b9e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxContingencyLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_9d4b0c54-aa75-4613-ac85-cb7e3880010f" xlink:to="loc_us-gaap_IncomeTaxContingencyLineItems_71edd982-8e64-46e5-a883-37c09b4a4b9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_a82bfb2c-d743-4d87-9562-7331eec875d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_71edd982-8e64-46e5-a883-37c09b4a4b9e" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_a82bfb2c-d743-4d87-9562-7331eec875d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwards_cf92bd37-1235-4cb3-9656-7a94c9559879" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLossCarryforwards"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_71edd982-8e64-46e5-a883-37c09b4a4b9e" xlink:to="loc_us-gaap_OperatingLossCarryforwards_cf92bd37-1235-4cb3-9656-7a94c9559879" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_8a3c4352-82a3-4b5e-a5d5-e772e706729a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TaxCreditCarryforwardAmount"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_71edd982-8e64-46e5-a883-37c09b4a4b9e" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_8a3c4352-82a3-4b5e-a5d5-e772e706729a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_cbf9c910-e7c1-4b0e-a747-d920ca8c12e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_71edd982-8e64-46e5-a883-37c09b4a4b9e" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_cbf9c910-e7c1-4b0e-a747-d920ca8c12e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/IncomeTaxesScheduleofUnrecognizedTaxBenefitsRollForwardDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#IncomeTaxesScheduleofUnrecognizedTaxBenefitsRollForwardDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/IncomeTaxesScheduleofUnrecognizedTaxBenefitsRollForwardDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_244601ec-16cb-45bb-8aca-e316b5a43c46" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_244601ec-16cb-45bb-8aca-e316b5a43c46" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_4d60dd3b-f648-4dd2-bb1f-925eeac84e3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefits"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_4d60dd3b-f648-4dd2-bb1f-925eeac84e3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_39382410-dcff-43f2-933c-4d4002601b13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_39382410-dcff-43f2-933c-4d4002601b13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_fdc515ec-9e76-439b-90d9-b07d77d10fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_fdc515ec-9e76-439b-90d9-b07d77d10fa9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_3940d440-e916-42f4-a7e0-94b89023a73b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_3940d440-e916-42f4-a7e0-94b89023a73b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_4d9a421d-b9e9-4189-a70a-809af25b8d71" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_4d9a421d-b9e9-4189-a70a-809af25b8d71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_1de77a6a-4f6e-4c3b-be4d-bae8616aa665" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefits"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_6bb5f711-0aea-445c-b0f7-478e0cd61125" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_1de77a6a-4f6e-4c3b-be4d-bae8616aa665" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/SegmentandGeographicAreaInformationNarrativeDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#SegmentandGeographicAreaInformationNarrativeDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/SegmentandGeographicAreaInformationNarrativeDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_db8cf678-e103-47ed-ae2b-733ae6cc9936" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_7b5a67f0-30fd-42d1-a4e0-1070f8752f0d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NumberOfOperatingSegments"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_db8cf678-e103-47ed-ae2b-733ae6cc9936" xlink:to="loc_us-gaap_NumberOfOperatingSegments_7b5a67f0-30fd-42d1-a4e0-1070f8752f0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_c5a75b7b-edab-4be0-a73d-ca55fea3c34a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NumberOfReportableSegments"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_db8cf678-e103-47ed-ae2b-733ae6cc9936" xlink:to="loc_us-gaap_NumberOfReportableSegments_c5a75b7b-edab-4be0-a73d-ca55fea3c34a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/SegmentandGeographicAreaInformationRevenueandPropertyandEquipmentNetbyGeographicAreaDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#SegmentandGeographicAreaInformationRevenueandPropertyandEquipmentNetbyGeographicAreaDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/SegmentandGeographicAreaInformationRevenueandPropertyandEquipmentNetbyGeographicAreaDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_826de516-86ac-4633-b800-26c4a2b8d30e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_20ddc702-186e-40a7-948b-cb8f1226c174" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_826de516-86ac-4633-b800-26c4a2b8d30e" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_20ddc702-186e-40a7-948b-cb8f1226c174" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_f944feeb-1fa1-4d13-949b-a9e45f313c5a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_20ddc702-186e-40a7-948b-cb8f1226c174" xlink:to="loc_srt_StatementGeographicalAxis_f944feeb-1fa1-4d13-949b-a9e45f313c5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_cc3772ba-27f4-445e-9a74-74f0ae313dea" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_f944feeb-1fa1-4d13-949b-a9e45f313c5a" xlink:to="loc_srt_SegmentGeographicalDomain_cc3772ba-27f4-445e-9a74-74f0ae313dea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_country_US_6cf10fbf-ef39-460d-a33a-4be680b93b68" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_US"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_cc3772ba-27f4-445e-9a74-74f0ae313dea" xlink:to="loc_country_US_6cf10fbf-ef39-460d-a33a-4be680b93b68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_7f22cf63-8dfe-4d7b-bcc5-2d1a9daaabe7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonUsMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_cc3772ba-27f4-445e-9a74-74f0ae313dea" xlink:to="loc_us-gaap_NonUsMember_7f22cf63-8dfe-4d7b-bcc5-2d1a9daaabe7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_country_IN_16fe7aca-c626-4e36-af29-9a785296a323" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_IN"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_cc3772ba-27f4-445e-9a74-74f0ae313dea" xlink:to="loc_country_IN_16fe7aca-c626-4e36-af29-9a785296a323" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_OtherGeographicAreasMember_a0f3185b-7d6f-467e-930e-c930db299580" xlink:href="qlys-20231231.xsd#qlys_OtherGeographicAreasMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_cc3772ba-27f4-445e-9a74-74f0ae313dea" xlink:to="loc_qlys_OtherGeographicAreasMember_a0f3185b-7d6f-467e-930e-c930db299580" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_719c0aeb-2156-496b-97ad-76007bb7c43a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingInformationLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_20ddc702-186e-40a7-948b-cb8f1226c174" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_719c0aeb-2156-496b-97ad-76007bb7c43a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_48e37759-67d1-4d46-8299-c70513650dbe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_719c0aeb-2156-496b-97ad-76007bb7c43a" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_48e37759-67d1-4d46-8299-c70513650dbe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PropertyPlantAndEquipmentAndOperatingLeaseRightofuseAssets_ccf719fa-7e10-451b-b70a-d72cf793ce96" xlink:href="qlys-20231231.xsd#qlys_PropertyPlantAndEquipmentAndOperatingLeaseRightofuseAssets"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_719c0aeb-2156-496b-97ad-76007bb7c43a" xlink:to="loc_qlys_PropertyPlantAndEquipmentAndOperatingLeaseRightofuseAssets_ccf719fa-7e10-451b-b70a-d72cf793ce96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/NetIncomePerShareBasicandDilutedNetIncomePerShareDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#NetIncomePerShareBasicandDilutedNetIncomePerShareDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/NetIncomePerShareBasicandDilutedNetIncomePerShareDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_01905948-7645-45f0-aad2-330c4d14ceca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_548a24f4-10d3-4925-b4ec-fd5f558c4e5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01905948-7645-45f0-aad2-330c4d14ceca" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_548a24f4-10d3-4925-b4ec-fd5f558c4e5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_a4b41ca3-9ad2-4286-922e-1ce7fffbe6f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract_548a24f4-10d3-4925-b4ec-fd5f558c4e5a" xlink:to="loc_us-gaap_NetIncomeLoss_a4b41ca3-9ad2-4286-922e-1ce7fffbe6f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract_624c4716-9a3e-42aa-b019-7a445209e91b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01905948-7645-45f0-aad2-330c4d14ceca" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract_624c4716-9a3e-42aa-b019-7a445209e91b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_e120d374-4050-4314-b1c8-03ba6612f3bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract_624c4716-9a3e-42aa-b019-7a445209e91b" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_e120d374-4050-4314-b1c8-03ba6612f3bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_DilutiveSecuritiesAbstract_ac502aa8-be2b-4b84-9a07-3c3dafd52464" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DilutiveSecuritiesAbstract"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract_624c4716-9a3e-42aa-b019-7a445209e91b" xlink:to="loc_us-gaap_DilutiveSecuritiesAbstract_ac502aa8-be2b-4b84-9a07-3c3dafd52464" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_439773ba-263d-47e9-8f7b-74bb937146d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DilutiveSecuritiesAbstract_ac502aa8-be2b-4b84-9a07-3c3dafd52464" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_439773ba-263d-47e9-8f7b-74bb937146d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_54e591c2-f52c-42c6-8f48-09e1d29b5b16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DilutiveSecuritiesAbstract_ac502aa8-be2b-4b84-9a07-3c3dafd52464" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_54e591c2-f52c-42c6-8f48-09e1d29b5b16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements_3439ee15-d74a-4d7b-94eb-b57a57905ea7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DilutiveSecuritiesAbstract_ac502aa8-be2b-4b84-9a07-3c3dafd52464" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements_3439ee15-d74a-4d7b-94eb-b57a57905ea7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_bb351aef-695c-4e31-b716-c25635fdabdd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract_624c4716-9a3e-42aa-b019-7a445209e91b" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_bb351aef-695c-4e31-b716-c25635fdabdd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareReconciliationAbstract_c9d65003-dd86-45a7-bc94-b56b8a76a8d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareReconciliationAbstract"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_01905948-7645-45f0-aad2-330c4d14ceca" xlink:to="loc_us-gaap_EarningsPerShareReconciliationAbstract_c9d65003-dd86-45a7-bc94-b56b8a76a8d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_e1643aa3-754a-460e-b4c9-35510818aa8a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareBasic"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_c9d65003-dd86-45a7-bc94-b56b8a76a8d4" xlink:to="loc_us-gaap_EarningsPerShareBasic_e1643aa3-754a-460e-b4c9-35510818aa8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_287b14cc-fda4-4e58-8d43-b9650d4c97b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareDiluted"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_c9d65003-dd86-45a7-bc94-b56b8a76a8d4" xlink:to="loc_us-gaap_EarningsPerShareDiluted_287b14cc-fda4-4e58-8d43-b9650d4c97b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://www.qualys.com/role/NetIncomePerShareAntidilutiveNetIncomePerShareDetails" xlink:type="simple" xlink:href="qlys-20231231.xsd#NetIncomePerShareAntidilutiveNetIncomePerShareDetails"/>
<link:presentationLink xlink:role="http://www.qualys.com/role/NetIncomePerShareAntidilutiveNetIncomePerShareDetails" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_14eeaaf0-b759-43a0-8e62-e37a0fe96627" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_855f1527-14ae-4d68-96e8-d10732c93162" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_14eeaaf0-b759-43a0-8e62-e37a0fe96627" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_855f1527-14ae-4d68-96e8-d10732c93162" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_8f00708e-bffb-437a-af0d-3f7b04ae87af" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_855f1527-14ae-4d68-96e8-d10732c93162" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_8f00708e-bffb-437a-af0d-3f7b04ae87af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4fe63969-572c-4fdf-b47d-8a7866fe5928" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_8f00708e-bffb-437a-af0d-3f7b04ae87af" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4fe63969-572c-4fdf-b47d-8a7866fe5928" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_74b6c569-6875-482a-9170-24ea71a538d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4fe63969-572c-4fdf-b47d-8a7866fe5928" xlink:to="loc_us-gaap_EmployeeStockOptionMember_74b6c569-6875-482a-9170-24ea71a538d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_53e5d251-490f-4307-acfd-771661ee5a75" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4fe63969-572c-4fdf-b47d-8a7866fe5928" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_53e5d251-490f-4307-acfd-771661ee5a75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_EmployeeStockPurchasePlanSharesMember_1e264345-a767-4360-9104-e9a47baebce8" xlink:href="qlys-20231231.xsd#qlys_EmployeeStockPurchasePlanSharesMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_4fe63969-572c-4fdf-b47d-8a7866fe5928" xlink:to="loc_qlys_EmployeeStockPurchasePlanSharesMember_1e264345-a767-4360-9104-e9a47baebce8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_972076e9-d220-48df-bd0b-0be6c29596f4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_855f1527-14ae-4d68-96e8-d10732c93162" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_972076e9-d220-48df-bd0b-0be6c29596f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_7a9f593f-a100-4493-92d3-c7b18e423734" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_972076e9-d220-48df-bd0b-0be6c29596f4" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_7a9f593f-a100-4493-92d3-c7b18e423734" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#AwardTimingDisclosure"/>
<link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_PerformanceBasedRestrictedStockUnitsMember" xlink:href="qlys-20231231.xsd#qlys_PerformanceBasedRestrictedStockUnitsMember"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_qlys_PerformanceBasedRestrictedStockUnitsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_ESPPSharesMember" xlink:href="qlys-20231231.xsd#qlys_ESPPSharesMember"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_qlys_ESPPSharesMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgDiscLineItems" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardTmgDiscLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardTmgMnpiDiscTextBlock"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardTmgMethodTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMethodTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgPredtrmndFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardTmgPredtrmndFlag"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgPredtrmndFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardTmgMnpiCnsdrdFlag"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardTmgHowMnpiCnsdrdTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_MnpiDiscTimedForCompValFlag"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardsCloseToMnpiDiscTableTextBlock"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardsCloseToMnpiDiscTable"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_IndividualAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllIndividualsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="loc_us-gaap_AwardTypeAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_EmployeeStockOptionMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockAppreciationRightsSARSMember"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardsCloseToMnpiDiscIndName"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardUndrlygSecuritiesAmt"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardExrcPrice" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardExrcPrice"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardExrcPrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AwardGrantDateFairValue" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AwardGrantDateFairValue"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardGrantDateFairValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_UndrlygSecurityMktPriceChngPct"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#InsiderTradingArrangements"/>
<link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllIndividualsMember"/>
<link:loc xlink:type="locator" xlink:label="loc_qlys_JeffreyHankMember" xlink:href="qlys-20231231.xsd#qlys_JeffreyHankMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_qlys_JeffreyHankMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingArrLineItems" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_InsiderTradingArrLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrByIndTable" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TradingArrByIndTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TradingArrByIndTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TradingArrAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="loc_ecd_TradingArrAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllTradingArrangementsMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllTradingArrangementsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrAxis" xlink:to="loc_ecd_AllTradingArrangementsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_IndividualAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_MtrlTermsOfTrdArrTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TrdArrIndName"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndTitle" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TrdArrIndTitle"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrIndTitle" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_Rule10b51ArrAdoptedFlag"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonRule10b51ArrAdoptedFlag"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrAdoptionDate" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TrdArrAdoptionDate"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrAdoptionDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_Rule10b51ArrTrmntdFlag"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonRule10b51ArrTrmntdFlag"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrTerminationDate" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TrdArrTerminationDate"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrTerminationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrDuration" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TrdArrDuration"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrDuration" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TrdArrSecuritiesAggAvailAmt"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ErrCompDisclosure"/>
<link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_RecoveryOfErrCompDisclosureLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompRecoveryTable" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ErrCompRecoveryTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ErrCompRecoveryTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDateAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_RestatementDateAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ErrCompRecoveryTable" xlink:to="loc_ecd_RestatementDateAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_IndividualAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ErrCompRecoveryTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllIndividualsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonNeosMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonNeosMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_ecd_NonNeosMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDeterminationDate" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_RestatementDeterminationDate"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_RestatementDeterminationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AggtErrCompAmt"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_AggtErrCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompAnalysisTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ErrCompAnalysisTextBlock"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ErrCompAnalysisTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_StkPrcOrTsrEstimationMethodTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingAggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_OutstandingAggtErrCompAmt"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingAggtErrCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AggtErrCompNotYetDeterminedTextBlock"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ForgoneRecoveryIndName"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_OutstandingRecoveryIndName"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_OutstandingRecoveryCompAmt"/>
<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingRecoveryCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_RestatementDoesNotRequireRecoveryTextBlock"/>
<link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#PvpDisclosure"/>
<link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PayVsPerformanceDisclosureLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTable" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PvpTable"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PvpTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ExecutiveCategoryAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ExecutiveCategoryAxis"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_ExecutiveCategoryAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllExecutiveCategoriesMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllExecutiveCategoriesMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ExecutiveCategoryAxis" xlink:to="loc_ecd_AllExecutiveCategoriesMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PeoMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PeoMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllExecutiveCategoriesMember" xlink:to="loc_ecd_PeoMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonPeoNeoMember"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllExecutiveCategoriesMember" xlink:to="loc_ecd_NonPeoNeoMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_IndividualAxis"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllIndividualsMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AdjToCompAxis"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_AdjToCompAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AllAdjToCompMember" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AllAdjToCompMember"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AdjToCompAxis" xlink:to="loc_ecd_AllAdjToCompMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureAxis" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_MeasureAxis"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_MeasureAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PvpTableTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PvpTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_CoSelectedMeasureName"/>
<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CoSelectedMeasureName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NamedExecutiveOfficersFnTextBlock"/>
<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PeerGroupIssuersFnTextBlock"/>
<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_ChangedPeerGroupFnTextBlock"/>
<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PeoTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PeoTotalCompAmt"/>
<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoTotalCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PeoActuallyPaidCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PeoActuallyPaidCompAmt"/>
<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoActuallyPaidCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToPeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AdjToPeoCompFnTextBlock"/>
<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToPeoCompFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonPeoNeoAvgTotalCompAmt"/>
<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonPeoNeoAvgCompActuallyPaidAmt"/>
<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AdjToNonPeoNeoCompFnTextBlock"/>
<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_EquityValuationAssumptionDifferenceFnTextBlock"/>
<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock"/>
<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_CompActuallyPaidVsNetIncomeTextBlock"/>
<link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock"/>
<link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TotalShareholderRtnVsPeerGroupTextBlock"/>
<link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_CompActuallyPaidVsOtherMeasureTextBlock"/>
<link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TabularListTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TabularListTableTextBlock"/>
<link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TabularListTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_TotalShareholderRtnAmt"/>
<link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TotalShareholderRtnAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PeerGroupTotalShareholderRtnAmt"/>
<link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_us-gaap_NetIncomeLoss" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_CoSelectedMeasureAmt"/>
<link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CoSelectedMeasureAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_OtherPerfMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_OtherPerfMeasureAmt"/>
<link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_OtherPerfMeasureAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_AdjToCompAmt"/>
<link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_PeoName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_PeoName"/>
<link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureName" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_MeasureName"/>
<link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_MeasureName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_NonGaapMeasureDescriptionTextBlock"/>
<link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_Additional402vDisclosureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_Additional402vDisclosureTextBlock"/>
<link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_Additional402vDisclosureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
<link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#InsiderTradingPoliciesProc"/>
<link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:type="extended">
<link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_InsiderTradingPoliciesProcLineItems"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_InsiderTrdPoliciesProcAdoptedFlag"/>
<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
<link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock"/>
<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
</link:presentationLink>
</link:linkbase>

11 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

11/02/22  Qualys, Inc.                      8-K:2,5,9  10/27/22   12:588K                                   Donnelley … Solutions/FA
 6/10/22  Qualys, Inc.                      8-K:5,9     6/08/22   11:259K                                   Donnelley … Solutions/FA
 2/22/22  Qualys, Inc.                      10-K       12/31/21   98:10M                                    RDG Filings/FA
 6/11/21  Qualys, Inc.                      8-K:5,9     6/09/21   11:233K                                   Donnelley … Solutions/FA
 5/26/20  Qualys, Inc.                      8-K:5,9     5/21/20   12:186K                                   Donnelley … Solutions/FA
 2/21/20  Qualys, Inc.                      10-K       12/31/19   98:13M                                    Workiva Inc Wde… FA01/FA
10/19/16  Qualys, Inc.                      8-K:1,2,9  10/14/16    2:2.3M                                   Donnelley … Solutions/FA
 4/25/16  Qualys, Inc.                      DEF 14A     6/06/16    1:1.1M                                   Donnelley … Solutions/FA
 9/12/12  Qualys, Inc.                      S-1/A¶                15:6.8M                                   Donnelley … Solutions/FA
 8/10/12  Qualys, Inc.                      S-1/A¶                 6:4.5M                                   Donnelley … Solutions/FA
 6/08/12  Qualys, Inc.                      S-1                   18:7.2M                                   Donnelley … Solutions/FA
↑Top
Filing Submission 0001107843-24-000008   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
About — Privacy — Redactions — Help — Tue., May 14, 8:25:11.1am ET