| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Web Analytics & Measurement | |
| Sentry Error tracking and performance monitoring platform for apps | 5.7M sites |
| Hosting & Cloud Providers | |
| IONOS Web hosting and domain provider offering managed plans | 12.6M sites |
| Plesk Web hosting control panel for managing servers and sites | 6.6M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 153.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| Slider Revolution Popular slider and visual content builder for WordPress sites | 6.6M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 74.5M sites |
| Media, Maps & Social | |
| Wistia Business video hosting with embeddable players and viewer analytics. | 206.5K sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| If Menu – Visibility control for Menus Design & Themes | 34.3K sites |
| Elfsight Testimonials Slider Other | 2.5K sites |
| Elfsight Team Showcase | 1.2K sites |
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