Sites like OWASP

01 · Entity

About OWASP

OWASP owasp.org

OWASP Foundation - The Open Source Foundation for Application Security

OWASP is the nonprofit behind the Top 10, ASVS, ZAP, and hundreds more free application security projects. Explore our tools, standards, local chapters, global events, and news from a community of 250+ chapters worldwide.

Wikidata: computer security organization

Top 10K · #3,161 English 10 technologies Crawled Nov 6, 2026

Visit OWASP

Summary by Claude

Nonprofit foundation that publishes free, open-source application security projects, standards and documentation such as the OWASP Top 10, ASVS, ZAP and Dependency-Track, and runs local chapters and AppSec conferences.

Who it’s for

Software developers and security professionals

Business model

Donations, memberships, corporate sponsorship and conference fees

• application security nonprofit
• OWASP Top 10
• ASVS verification standard
• Dependency-Track supply chain risk
• Juice Shop vulnerable app
• Global AppSec conference
• local security chapters
• web application security testing
• SAMM maturity model

02 · Embedding space

Competitor map

Each alternative by how close its vector is to OWASP’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   Apache Software Foundation apache.org Top 1K English

   Welcome to The Apache Software Foundation | Apache Software Foundation

   American nonprofit open-source software community

   • Atlassian
   • Google Search Console
   • Apache HTTP Server
   • Bootstrap
   • Fastly
   • GlobalSign

   0 say Apache Software Foundation is a good alternative to OWASP 0 say Apache Software Foundation isn’t a real alternative to OWASP

   Comment
   Very close cos 0.920
2. 02
   ModSecurity modsecurity.org Top 10K English

   ModSecurity Project – Open-Source Web Application Firewall

   Protect your websites and apps with ModSecurity, the OWASP-backed open-source WAF trusted to stop threats. Upgrade your security today.

   • Cloudflare DNS
   • Cloudflare
   • Fastly

   0 say ModSecurity is a good alternative to OWASP 0 say ModSecurity isn’t a real alternative to OWASP

   Comment
   Close cos 0.893
3. 03
   Eclipse Foundation eclipse.org Top 10K English

   Eclipse Foundation | Powering Open Innovation

   The Eclipse Foundation hosts 450+ open source projects with vendor-neutral governance, enabling global collaboration in automotive, IoT, cloud, and emerging …

   • Google Search Console
   • Mailchimp
   • Google Fonts
   • Google Tag Manager
   • HubSpot
   • nginx

   0 say Eclipse Foundation is a good alternative to OWASP 0 say Eclipse Foundation isn’t a real alternative to OWASP

   Comment
   Close cos 0.893
4. 04
   NLnet Labs nlnetlabs.nl Top 10K English

   NLnet Labs - Home

   Research & Development, Internet architecture, DNS, Routing, Stability and Security.

   • Google Workspace
   • Adobe Fonts
   • Bootstrap
   • Font Awesome
   • jQuery
   • nginx

   0 say NLnet Labs is a good alternative to OWASP 0 say NLnet Labs isn’t a real alternative to OWASP

   Comment
   Close cos 0.892
5. 05
   OSF osf.io Top 10K English

   OSF

   tools that make open science practice easier

   • Google Search Console
   • Mailchimp
   • Google Cloud DNS
   • Mailgun
   • Mailchimp Transactional

   0 say OSF is a good alternative to OWASP 0 say OSF isn’t a real alternative to OWASP

   Comment
   Close cos 0.881
6. 06
   Wikimedia movement wikimedia.org Top 1K English

   Wikimedia Error

   global social movement for free educational knowledge

   • Google Search Console
   • Google Workspace
   • Microsoft 365
   • Miro

   0 say Wikimedia movement is a good alternative to OWASP 0 say Wikimedia movement isn’t a real alternative to OWASP

   Comment
   Close cos 0.879
7. 07
   College Board collegeboard.org Top 10K English

   College Board - SAT, AP, College Search and Admission Tools

   College Board is a non-profit organization that clears a path for all students to own their future through the AP Program, SAT Suite, BigFuture, and more.

   • Atlassian
   • Google Search Console
   • Akamai
   • Akamai Bot Manager
   • Apple Business
   • Bing Webmaster Tools

   0 say College Board is a good alternative to OWASP 0 say College Board isn’t a real alternative to OWASP

   Comment
   Close cos 0.875
8. 08
   Let's Encrypt letsencrypt.org Top 10K English

   Let's Encrypt

   Let's Encrypt is a free, automated, and open Certificate Authority brought to you by the nonprofit Internet Security Research Group (ISRG). Read all about our work in our Annual Report.

   • Cloudflare DNS
   • Google Workspace
   • Font Awesome
   • Netlify
   • Zendesk

   0 say Let's Encrypt is a good alternative to OWASP 0 say Let's Encrypt isn’t a real alternative to OWASP

   Comment
   Close cos 0.876
9. 09
   Archive of Our Own archiveofourown.org Top 10K English

   Request temporarily denied. | Archive of Our Own

   nonprofit online fanfiction repository operated by the Organization for Transformative Works

   • Cloudflare DNS
   • Google Search Console
   • Cloudflare

   0 say Archive of Our Own is a good alternative to OWASP 0 say Archive of Our Own isn’t a real alternative to OWASP

   Comment
   Close cos 0.876
10. 10
    American Physical Society aps.org Top 10K English

    American Physical Society

    The American Physical Society is a nonprofit membership organization working to advance physics by fostering a vibrant, inclusive, and global community dedicated to science and society.

    • Atlassian
    • Google Search Console
    • Google Workspace
    • Next.js
    • React
    • Apple Business

    0 say American Physical Society is a good alternative to OWASP 0 say American Physical Society isn’t a real alternative to OWASP

    Comment
    Close cos 0.870
11. 11
    MariaDB mariadb.org Top 10K English

    MariaDB Foundation - MariaDB.org

    database management system, relational, open source, community developed fork of MySQL

    • Cloudflare DNS
    • Google Search Console
    • Google Workspace
    • Brevo
    • Google Analytics
    • jQuery

    0 say MariaDB is a good alternative to OWASP 0 say MariaDB isn’t a real alternative to OWASP

    Comment
    Close cos 0.869
12. 12
    Pew Research Center pewresearch.org Top 10K English

    Pew Research Center | Nonpartisan, nonadvocacy, public opinion polling and data-driven social science research

    Numbers, Facts and Trends Shaping Your World

    • Google Search Console
    • Mailchimp
    • Microsoft 365
    • Adobe
    • Adobe Fonts
    • Apple Business

    0 say Pew Research Center is a good alternative to OWASP 0 say Pew Research Center isn’t a real alternative to OWASP

    Comment
    Close cos 0.869
13. 13
    Open Source Initiative opensource.org Top 10K English

    Open Source Initiative – The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.

    The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.

    • Cloudflare DNS
    • Google Search Console
    • Google Workspace
    • Cloudflare
    • jQuery
    • PHP

    0 say Open Source Initiative is a good alternative to OWASP 0 say Open Source Initiative isn’t a real alternative to OWASP

    Comment
    Close cos 0.865
14. 14
    CISA cisa.gov Top 10K English

    Home Page | CISA

    Cybersecurity and Infrastructure Security Agency: America's Cyber Defense Agency

    • Atlassian
    • Google Search Console
    • Microsoft 365
    • Adobe
    • Drupal
    • Google Fonts

    0 say CISA is a good alternative to OWASP 0 say CISA isn’t a real alternative to OWASP

    Comment
    Close cos 0.866
15. 15
    Council on Foreign Relations cfr.org Top 10K English

    Council on Foreign Relations

    The Council on Foreign Relations (CFR) is an independent, nonpartisan member organization, think tank, and publisher.

    • Atlassian
    • Cloudflare DNS
    • Google Search Console
    • Microsoft 365
    • Next.js
    • React

    0 say Council on Foreign Relations is a good alternative to OWASP 0 say Council on Foreign Relations isn’t a real alternative to OWASP

    Comment
    Close cos 0.866
16. 16
    New Relic newrelic.com Top 1K English

    AI-powered Observability

    New Relic is an AI-powered observability platform that correlates your telemetry across your entire stack, so you can isolate the root cause and reduce MTTR.

    • Atlassian
    • Google Search Console
    • Google Workspace
    • Adobe
    • Apple Business
    • DocuSign

    0 say New Relic is a good alternative to OWASP 0 say New Relic isn’t a real alternative to OWASP

    Comment
    Close cos 0.866
17. 17
    HashiCorp hashicorp.com Top 10K English

    Vercel Security Checkpoint

    American software company

    • Atlassian
    • Google Search Console
    • Vercel
    • Adobe
    • Apple Business
    • Astro

    0 say HashiCorp is a good alternative to OWASP 0 say HashiCorp isn’t a real alternative to OWASP

    Comment
    Close cos 0.863
18. 18
    Raspberry Pi Foundation raspberrypi.org Top 10K English

    Teach, learn, and make with the Raspberry Pi Foundation

    We are a charity with the mission to enable young people to realise their full potential through the power of computing and digital technologies.

    • Cloudflare DNS
    • Google Search Console
    • Google Workspace
    • Apple Business
    • Canva
    • Cloudflare

    0 say Raspberry Pi Foundation is a good alternative to OWASP 0 say Raspberry Pi Foundation isn’t a real alternative to OWASP

    Comment
    Close cos 0.863
19. 19
    SPEC spec.org Top 10K English

    SPEC - Standard Performance Evaluation Corporation

    American non-profit corporation

    • Google Workspace
    • Apache HTTP Server
    • Google Fonts

    0 say SPEC is a good alternative to OWASP 0 say SPEC isn’t a real alternative to OWASP

    Comment
    Close cos 0.862
20. 20
    American Heart Association heart.org Top 10K English

    US nonprofit funding cardiovascular medical research, educating consumers on healthy living, and fostering cardiac care

    • Atlassian
    • Google Search Console
    • Adobe
    • Apple Business
    • Canva
    • Cloudflare

    0 say American Heart Association is a good alternative to OWASP 0 say American Heart Association isn’t a real alternative to OWASP

    Comment
    Close cos 0.862

Ranked by score: the cosine similarity of each site’s vector to owasp.org’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones OWASP uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What OWASP is built with, and what its closest competitors use, from its homepage’s code and its DNS records.