| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| Jetpack Automattic plugin adding security, performance, and site tools to WordPress | 2M sites |
| Twenty Twenty Default WordPress theme released with the 2020 version | 221.4K sites |
| WordPress Block Editor Block-based content editor built into modern WordPress | 12.2M sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 11.8M sites |
| Business Email & Productivity | |
| Microsoft 365 Microsoft suite for business email, office apps, and collaboration | 19.4M sites |
| Hosting & Cloud Providers | |
| Plesk Web hosting control panel for managing servers and sites | 5.6M sites |
| Surfnet-Nl Surfnet, The Netherlands Dutch national research and education network operator. | 13.6K sites |
| CDN & Edge Delivery | |
| jsDelivr Free open-source CDN for JavaScript, CSS, and assets | 17.7M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 129.2M sites |
| hCaptcha CAPTCHA service blocking bots while preserving privacy | 981.1K sites |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 13.2M sites |
| Privacy & Cookie Consent | |
| CookieYes Cookie consent and GDPR compliance banner solution | 2.4M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 146.9M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| JavaScript Libraries & Widgets | |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 93.8M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 40.4M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 65.2M sites |
| W3 Total Cache WordPress caching plugin improving site speed and performance | 1.1M sites |
| Media, Maps & Social | |
| Chart.js JavaScript library rendering charts on HTML canvas | 1.1M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 133.1M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 16.4M sites |
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