| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| Bricks Visual site builder theme for WordPress | 246.9K sites |
| Hosting & Cloud Providers | |
| Hosting. | 21.6K sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| Front-End Frameworks & UI Toolkits | |
| Automatic.css Utility CSS framework for page builders. | 76.6K sites |
| JavaScript Libraries & Widgets | |
| Lightbox JavaScript script displaying images in an overlay popup | 7.6M 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 |
| SEO & Content Discovery | |
| 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 |
| Ionicons Open-source icon set built for web and mobile apps | 1.2M sites |
| other | |
| MailBaby SMTP relay and outbound email delivery service | 521K sites |
| Bricks | 100K sites |
| Yabe Ukiyo Other | 24 sites |
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