| 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 | |
| Mailcheck JavaScript utility suggesting corrections for mistyped email addresses | 1.2M sites |
| Hosting & Cloud Providers | |
| Websupport-Sro-Sk-As Network operator identifier for Websupport hosting | 513.3K sites |
| Security & Bot Defense | |
| Really Simple SSL & Security WordPress plugin enforcing HTTPS and hardening site security | 6.4M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 149.4M sites |
| Nginx High-performance web server and reverse proxy widely deployed | 153.2M sites |
| OpenResty Nginx-based web platform bundling Lua scripting support | 28.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| 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 |
| punycode JavaScript utility encoding internationalized domain names | 1.3M 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 |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Monsterinsights | 1.4M sites |
| Really Simple Security | 310K sites |
| iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more Security & Privacy | 143.4K sites |
| InstaWP Connect – 1-click WP Staging & Migration Security & Privacy | 16.1K sites |
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