| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| BoldGrid WordPress website builder and theme suite. | 77.8K sites |
| Marketing & Email Campaigns | |
| Creativ.eMail Email marketing and campaign delivery service. | 496.9K sites |
| Hosting & Cloud Providers | |
| Imh-Iad Network operator identifier for InMotion hosting | 205.2K 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 | |
| Bootstrap Popular CSS and component framework for responsive layouts | 43.5M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 742.2K sites |
| Modernizr JavaScript library detecting browser feature support | 7.5M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M sites |
| WOW JavaScript library revealing CSS animations on scroll | 5.3M 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 |
| SpeedyCache WordPress caching plugin improving site speed and page load times. | 101.7K 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 |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Wpcom | 2.2M sites |
| My Jetpack | 2.1M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 2.1M sites |
| Videopress | 329.4K sites |
| Creativemail | 144.6K sites |
| Jetpack Protect Security & Privacy | 92.8K sites |
| Zbscrm | 20.9K sites |
| Bgbkup | 18.7K sites |
| Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid Security & Privacy | 13.6K sites |
| weForms – Easy Drag & Drop Contact Form Builder For WordPress Forms & Popups | 11.3K sites |
| Ibtana – WordPress Website Builder Design & Themes | 9.1K sites |
| Ive | 9.1K sites |
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