| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 57.6M sites |
| WordPress Themes & Plugins | |
| Metronet Profile Picture WordPress plugin for uploading user profile pictures. | 52.8K sites |
| Web Analytics & Measurement | |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 53M sites |
| Hosting & Cloud Providers | |
| Google Cloud Google cloud platform for hosting, compute, and storage | 40.7M sites |
| WP Engine Managed WordPress hosting provider | 1.4M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 191.7M sites |
| cdnjs Free public CDN hosting popular open-source JavaScript libraries | 15.3M sites |
| jsDelivr Free open-source CDN for JavaScript, CSS, and assets | 17M sites |
| Security & Bot Defense | |
| Cloudflare Bot Management Cloudflare service detecting and mitigating malicious bot traffic | 7.1M sites |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 13.1M sites |
| Privacy & Cookie Consent | |
| OneTrust Privacy, consent, and compliance management platform | 3.8M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 147.9M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 91.4M sites |
| JavaScript Libraries & Widgets | |
| FitVids.JS JavaScript utility making embedded videos responsive | 3.8M sites |
| Magnific Popup Responsive lightbox and popup library for images and content | 6.3M sites |
| Select2 JavaScript library enhancing select boxes with search and tags | 1.5M sites |
| Slick Responsive carousel and slider library for web pages | 7.5M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 92.3M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 39.8M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 59.5M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 62.4M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 127.7M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 54.2M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 57.4M sites |
| Google Font API Google service delivering free web fonts to websites | 90.8M sites |
| other | |
| iGoDigital Product recommendation engine for online retailers, later part of Salesforce | 11.7K sites |
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