| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| Elementor Popular drag-and-drop page builder plugin for WordPress | 23.4M sites |
| Elementor Header & Footer Builder WordPress plugin building custom headers and footers for Elementor | 2.8M sites |
| Redux Framework Options framework used by WordPress themes and plugins | 1.7M sites |
| Hosting & Cloud Providers | |
| Bamboozle-As Hosting and network operator | 3K 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 |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 43.5M sites |
| UIKit Lightweight modular front-end framework for web interfaces | 1.4M sites |
| JavaScript Libraries & Widgets | |
| Magnific Popup Responsive lightbox and popup library for images and content | 8.2M sites |
| Modernizr JavaScript library detecting browser feature support | 7.5M sites |
| OWL Carousel Touch-enabled jQuery carousel and slider library | 10.2M sites |
| Popper JavaScript positioning engine for tooltips and popovers | 5.4M sites |
| Swiper Modern touch slider and carousel library for web and mobile | 25M sites |
| WOW JavaScript library revealing CSS animations on scroll | 5.3M sites |
| imagesLoaded JavaScript utility detecting when page images have finished loading | 11M 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 |
| metisMenu jQuery plugin for collapsible menu navigation. | 192.8K sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| W3 Total Cache WordPress caching plugin improving site speed and performance | 1.3M 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 |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Elementor Website Builder – more than just a page builder Design & Themes | 8.8M sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 4M sites |
| Wordfence Login Security Security & Privacy | 2.4M sites |
| Elementskit | 986.2K sites |
| Extendify Design & Themes | 10K sites |
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