| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress.com Hosted WordPress publishing and website platform. | 5.3M sites |
| WordPress Themes & Plugins | |
| Jetpack Automattic plugin adding security, performance, and site tools to WordPress | 2.7M sites |
| The Events Calendar WordPress plugin managing and displaying events and calendars | 967.3K sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M 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 | |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| Contact Form 7 Forms & Popups | 7.3M sites |
| Elementor One | 5.7M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Site Kit by Google – Analytics, Search Console, AdSense, Speed Analytics | 3.9M sites |
| Wpforms | 2.2M sites |
| Wpcom | 2.2M sites |
| My Jetpack | 2.1M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 2.1M sites |
| Hub Connector | 1.2M sites |
| Wpmudev_pcs | 878.7K sites |
| tribe Other | 497.5K sites |
| Tec | 409.2K sites |
| Ea11y | 331.6K sites |
| Newspack Blocks | 310.5K sites |
| Jetpack Global Styles | 309.4K sites |
| Wpcomsh | 308.5K sites |
| Help Center | 308.5K sites |
| Health Check & Troubleshooting Other | 229.4K sites |
| Otter | 178.8K sites |
| Hummingbird | 143.8K sites |
| Instant Images – One-click Image Uploads from Unsplash, Openverse, Pixabay, Pexels, and Giphy Other | 134.4K sites |
| Tenwebio | 46.2K sites |
| Tenweb_so | 46.2K sites |
| Bv Settings | 22.8K sites |
| Weather Atlas Widget Other | 5.7K sites |
| Easy Image Collage Content & Media | 1.7K sites |
| Stb | 876 sites |
| Live News – Responsive News Ticker Other | 242 sites |
| Bible SuperSearch Other | 232 sites |
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