| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 56.5M sites |
| WordPress Themes & Plugins | |
| aThemes Moesia WordPress theme for business sites from aThemes | 4.2K sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 11.5M sites |
| Hosting & Cloud Providers | |
| Interq Gmo Internet Group, Inc. Network operator identifier for GMO Internet hosting | 2.7M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 117.3M sites |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 12.9M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 67.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 89.1M sites |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 36.7M sites |
| JavaScript Libraries & Widgets | |
| Animate.css CSS library providing ready-made animation effects | 5.9M sites |
| FitVids.JS JavaScript utility making embedded videos responsive | 3.8M sites |
| WOW JavaScript library revealing CSS animations on scroll | 4.1M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 90.4M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 39.3M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 58.4M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 59.8M sites |
| Media, Maps & Social | |
| Translate WordPress WordPress plugin translating sites into multiple languages | 134.5K sites |
| SEO & Content Discovery | |
| Google Generic Google service or script detected on the site | 34.7M sites |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 122.9M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 53.2M sites |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 16M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 56.1M sites |
| Google Font API Google service delivering free web fonts to websites | 87.6M sites |
| other | |
| Liberapay Recurring donation platform for funding open source and creators | 1.3K sites |
| Yoast | 13.5M sites |
| Contact Form 7 Forms & Popups | 10.3M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 5.9M sites |
| Site Kit by Google – Analytics, Search Console, AdSense, Speed Analytics | 5.5M sites |
| Redirection SEO | 3.6M sites |
| Ai1wm | 2.2M sites |
| Font Awesome Other | 500.3K sites |
| Platformist Quadendpointer Sxadtr | 2.1K sites |
| Macrosampler Vue 8d92c28eb3a5 | 1 sites |
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