| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| WordPress Site Editor Full-site editing interface built into modern WordPress | 5.1M sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 15.8M sites |
| Communications | |
| Mailjet Email service for marketing and transactional messages | 305.5K sites |
| Hosting & Cloud Providers | |
| Contabo German provider of affordable servers and cloud hosting | 939.8K sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 161.4M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 149.4M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 742.2K sites |
| Clipboard.js Lightweight JavaScript library for copying text to clipboard | 1.2M sites |
| Moxie JavaScript runtime library powering cross-browser file uploads | 236.6K sites |
| Plupload JavaScript library handling multi-file uploads across browsers | 231.3K sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M 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 |
| 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 | |
| Flot jQuery plotting library for rendering interactive charts and graphs in browsers. | 41.9K sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Contact Form 7 Forms & Popups | 7.3M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Colibri_theme | 104.4K sites |
| Kubio AI Page Builder Design & Themes | 52.6K sites |
| Wp Dark Mode | 13.1K sites |
| WPVulnerability Security & Privacy | 9K sites |
| Presence | 12 sites |
| Ejabberd Account Tools Other | 7 sites |
| XMPP Statistics Other | 6 sites |
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