| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| wpBakery Drag-and-drop page builder plugin for WordPress | 3.3M sites |
| Web Analytics & Measurement | |
| Clicky Real-time web analytics and visitor tracking service. | 94.4K sites |
| Hosting & Cloud Providers | |
| Serverplan-As Italian web hosting provider. | 311.9K sites |
| Privacy & Cookie Consent | |
| Cookie Notice WordPress plugin displaying a cookie consent notice | 926.8K sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 72.1M sites |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 157.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 39M sites |
| JavaScript Libraries & Widgets | |
| Lightbox JavaScript script displaying images in an overlay popup | 5.9M sites |
| Modernizr JavaScript library detecting browser feature support | 5.9M sites |
| OWL Carousel Touch-enabled jQuery carousel and slider library | 8M sites |
| Slider Revolution Popular slider and visual content builder for WordPress sites | 5M sites |
| imagesLoaded JavaScript utility detecting when page images have finished loading | 8.4M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 93.8M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 40.4M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 60.6M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 65.2M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 133.1M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 94.4M sites |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 5.8M sites |
| Mcp | 5.8M sites |
| Wordfence Login Security Security & Privacy | 4.1M sites |
| Rankmath | 4M sites |
| Sliderrevolution | 1.6M sites |
| Llar | 1.3M sites |
| Cookie Compliance for WordPress – Cookie Consent, GDPR & CCPA Security & Privacy | 466.7K sites |
| Widewalk – Accessibility Toolbar Design & Themes | 152 sites |
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