| Security & Bot Defense | |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 12.9M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 67.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 89.1M sites |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 36.7M sites |
| JavaScript Libraries & Widgets | |
| Magnific Popup Responsive lightbox and popup library for images and content | 6.2M sites |
| OWL Carousel Touch-enabled jQuery carousel and slider library | 7.8M sites |
| Slider Revolution Popular slider and visual content builder for WordPress sites | 4.9M sites |
| Stellar.js jQuery plugin creating parallax scrolling effects | 481.6K sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 90.4M sites |
| Media, Maps & Social | |
| Easy Pie Chart Lightweight library rendering simple animated pie charts | 1.2M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 122.9M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 56.1M sites |
| Google Font API Google service delivering free web fonts to websites | 87.6M sites |
| other | |
| Supreme-Servers | 130 sites |
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