| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 56.5M sites |
| Web Analytics & Measurement | |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 52.2M sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 11.5M sites |
| Hosting & Cloud Providers | |
| Cix-As | 4.7K sites |
| Plesk Web hosting control panel for managing servers and sites | 5.4M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 170.6M sites |
| cdnjs Free public CDN hosting popular open-source JavaScript libraries | 14.9M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 117.3M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 136.8M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 89.1M sites |
| JavaScript Libraries & Widgets | |
| Slick Responsive carousel and slider library for web pages | 7.4M 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 |
| Media, Maps & Social | |
| AddToAny Social sharing buttons widget for websites | 555.2K sites |
| SEO & Content Discovery | |
| 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 | |
| Google Font API Google service delivering free web fonts to websites | 87.6M sites |
| Yoast | 13.5M sites |
| Contact Form 7 Forms & Popups | 10.3M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 5.9M sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 5.7M sites |
| Wordfence Login Security Security & Privacy | 4.1M sites |
| Redirection SEO | 3.6M sites |
| Ithemes Security | 1M sites |
| Cptui | 661.4K sites |
| Liquidweb | 412.1K sites |
| Cf7apps | 379.2K sites |
| Wpgmza | 310.9K sites |
| Wpcf7r | 231.3K sites |
| Simple Page Ordering Design & Themes | 195.2K sites |
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