Sites like ModSecurity

01 · Entity

About ModSecurity

ModSecurity modsecurity.org

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.

Wikidata: web application firewall (WAF) module

Top 10K · #5,075 English 3 technologies Crawled Nov 6, 2026

Visit ModSecurity

Summary by Claude

Project site for ModSecurity, a free open-source web application firewall engine for Apache, nginx and IIS that filters and logs HTTP traffic using a rules language, maintained under the OWASP Foundation alongside the Core Rule Set.

Who it’s for

System administrators, security engineers, WAF vendors

Business model

Open-source project (nonprofit)

• web application firewall
• open-source WAF
• Apache module
• nginx WAF
• OWASP Core Rule Set
• HTTP traffic logging
• security rules language
• virtual patching
• libmodsecurity v3

02 · Embedding space

Competitor map

Each alternative by how close its vector is to ModSecurity’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
   OWASP owasp.org Top 10K English

   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.

   • Cloudflare DNS
   • Amazon SES
   • Atlassian
   • Google Search Console
   • Google Workspace
   • Mailchimp

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

   Comment
   Close cos 0.893
2. 02
   PHP php.net Top 1K English

   PHP

   PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world.

   • bunny.net
   • Font Awesome
   • Google Search Console
   • jQuery
   • Matomo

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

   Comment
   Close cos 0.885
3. 03
   Modrinth modrinth.com Top 10K English

   Modrinth

   Download Minecraft mods, plugins, datapacks, shaders, resourcepacks, and modpacks on Modrinth. Discover and publish projects on Modrinth with a modern, easy to use interface and API.

   • Cloudflare
   • Cloudflare DNS
   • bunny.net
   • Cloudflare Web Analytics
   • Google Search Console
   • Google Workspace

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

   Comment
   Close cos 0.881
4. 04
   Laravel laravel.com Top 10K English

   Laravel - The clean stack for Artisans and agents

   Laravel is a framework for building modern web apps and AI agents. Expressive syntax, built-in tools, and everything you need to ship fast.

   • Cloudflare
   • Cloudflare DNS
   • Algolia
   • Apple Business
   • Atlassian
   • Fathom

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

   Comment
   Close cos 0.878
5. 05
   apachefriends.org Top 10K English

   XAMPP Installers and Downloads for Apache Friends

   XAMPP is an easy to install Apache distribution containing MariaDB, PHP and Perl.

   • Cloudflare DNS
   • Fastly
   • cdnjs
   • Font Awesome
   • GitHub Pages
   • Google Analytics

   0 say apachefriends.org is a good alternative to ModSecurity 0 say apachefriends.org isn’t a real alternative to ModSecurity

   Comment
   Close cos 0.875
6. 06
   AMP ampproject.org Top 1K English

   AMP - a web component framework to easily create user-first web experiences - amp.dev

   Whether you are a publisher, e-commerce company, storyteller, advertiser or email sender, AMP makes it easy to create great experiences on the web. Use AMP to build websites, stories, ads and emails.

   • GlobalSign
   • Google Search Console
   • Google Workspace
   • Netlify

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

   Comment
   Close cos 0.874
7. 07
   Apache Software Foundation apache.org Top 1K English

   Welcome to The Apache Software Foundation | Apache Software Foundation

   American nonprofit open-source software community

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

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

   Comment
   Close cos 0.875
8. 08
   phpMyAdmin phpmyadmin.net Top 10K English

   phpMyAdmin

   database administration tool

   • Google Analytics
   • Google Search Console

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

   Comment
   Close cos 0.875
9. 09
   Hardened PHP hardened-php.net Top 10K English

   Hardened PHP - Hardened-PHP

   PHP is far and away the most popular backend programming language today, with more than 80 websites worldwide taking advantage of PHP solutions. All of the most popular CMS platforms – including WordPress, Joomla!, and Drupal (just to name a few) leverage this technology. It’s flexibility and versatility make it a powerhouse programming language, but […]

   • jQuery
   • nginx
   • PHP
   • WordPress

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

   Comment
   Close cos 0.873
10. 10
    CISA cisa.gov Top 10K English

    Home Page | CISA

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

    • Adobe
    • Atlassian
    • Drupal
    • Google Fonts
    • Google Search Console
    • Google Tag Manager

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

    Comment
    Close cos 0.873
11. 11
    Drupal drupal.org Top 10K English

    Client Challenge

    free and open-source web content management system

    • Fastly
    • Amazon SES
    • Atlassian
    • GlobalSign
    • Google Search Console
    • Mailchimp

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

    Comment
    Close cos 0.873
12. 12
    freedesktop.org Top 10K English

    Checking you are not a bot

    open-source desktop environment software project

    • Apache HTTP Server
    • Google Search Console

    0 say freedesktop.org is a good alternative to ModSecurity 0 say freedesktop.org isn’t a real alternative to ModSecurity

    Comment
    Close cos 0.870
13. 13
    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 Fonts
    • Google Search Console
    • Google Tag Manager
    • HubSpot
    • Mailchimp
    • nginx

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

    Comment
    Close cos 0.870
14. 14
    F5 f5.com Top 100 English

    Hybrid Multicloud App Security & Delivery for the AI Era | F5

    Unified delivery & security for applications, APIs, & AI workloads across any infrastructure, trusted by 85% of the Fortune 500. Secure your digital ecosystem.

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

    0 say F5 is a good alternative to ModSecurity 0 say F5 isn’t a real alternative to ModSecurity

    Comment
    Close cos 0.868
15. 15
    Tor Project torproject.org Top 10K English

    Tor Project | Anonymity Online

    Anonymity Online | Defend yourself against tracking and surveillance. Circumvent censorship.

    • Apache HTTP Server
    • Bootstrap
    • Font Awesome
    • Google Search Console
    • jQuery

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

    Comment
    Close cos 0.868
16. 16
    int08h.com Top 10K English

    int08h

    • Fastly
    • Google Analytics
    • Google Search Console
    • Microsoft 365
    • Namecheap DNS

    0 say int08h.com is a good alternative to ModSecurity 0 say int08h.com isn’t a real alternative to ModSecurity

    Comment
    Close cos 0.869
17. 17
    curl curl.se Top 10K English

    curl

    command line tool and library for transferring data with URL syntax

    • Fastly
    • nginx

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

    Comment
    Close cos 0.868
18. 18
    Apache Today apachetoday.com Top 10K English

    Apache Today: practical guides to the Apache HTTP Server

    Tested guides for the Apache HTTP Server 2.4: install, virtual hosts, HTTPS, .htaccess, mod_rewrite, PHP, proxies, tuning and security, plus the 2000–2002 news archive.

    • GoDaddy DNS
    • nginx

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

    Comment
    Close cos 0.866
19. 19
    Kubernetes kubernetes.io Top 10K English

    Kubernetes

    Kubernetes, also known as K8s, is an open source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery. Kubernetes builds upon 15 years of experience of running production workloads at Google, combined with best-of-breed ideas and practices from the community. Planet scaleDesigned on the same principles that allow Google to run billions of containers a week, Kubernetes can scale without increasing your operations team.

    • Google Analytics
    • Google Cloud DNS
    • Google Search Console
    • Google Workspace
    • jQuery
    • Netlify

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

    Comment
    Close cos 0.866
20. 20
    Enlightenment enlightenment.org Top 10K English

    Enlightenment Main

    window manager for Unix-like operating systems

    • Apache HTTP Server
    • Bootstrap
    • Google Fonts

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

    Comment
    Close cos 0.866

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

04 · Fingerprints

Technology

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