| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| Genesis blocks WordPress plugin adding blocks for the Genesis framework | 228.8K sites |
| ThemeIsle Menu Icons WordPress plugin adding icons to navigation menus | 261.1K sites |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| Web Analytics & Measurement | |
| Piwik PRO Core Privacy-focused analytics and tag management platform | 788.1K sites |
| Forms & Lead Capture | |
| Conditional Fields for Contact Form 7 WordPress add-on adding conditional logic to Contact Form 7 | 289.2K sites |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 15.8M sites |
| Hosting & Cloud Providers | |
| Udag German domain registrar and web hosting services provider. | 1.3M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 153.2M sites |
| Ubuntu Popular Linux operating system used for servers | 18M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| Front-End Frameworks & UI Toolkits | |
| AngularJS Legacy JavaScript framework for building single-page apps | 934.4K sites |
| PWA Progressive web app technology enabling installable, offline-capable sites | 29.8M sites |
| JavaScript Libraries & Widgets | |
| Select2 JavaScript library enhancing select boxes with search and tags | 1.8M sites |
| Slick Responsive carousel and slider library for web pages | 9.9M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M sites |
| imagesLoaded JavaScript utility detecting when page images have finished loading | 11M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 53M sites |
| pickadate.js Lightweight JavaScript date and time picker | 278.8K sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Redis In-memory data store used for caching and messaging | 675.1K sites |
| Redis Object Cache WordPress plugin caching database objects in Redis | 573.6K sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 21.4M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| Yoast | 9.2M sites |
| Contact Form 7 Forms & Popups | 7.3M sites |
| Redirection SEO | 2.6M sites |
| Complianz | 1.4M sites |
| Optml | 138K sites |
| Genesisblocks | 88K sites |
| Getwid – Gutenberg Blocks Design & Themes | 35.8K sites |
| Acf | 30.2K sites |
| Interactive Content – H5P Content & Media | 21.3K sites |
| Gbm | 4.2K sites |
| Portal | 805 sites |
| edu-sharing Design & Themes | 6 sites |
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