| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| Jetpack Automattic plugin adding security, performance, and site tools to WordPress | 2M sites |
| SiteOrigin Page Builder WordPress plugin building page layouts with widgets | 332.4K sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 49.9M sites |
| Hosting & Cloud Providers | |
| Iweb-As Network operator and autonomous system for internet infrastructure. | 155.3K sites |
| Security & Bot Defense | |
| GlobalSign Certificate authority issuing SSL/TLS and identity certificates | 705.6K sites |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 129.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| JavaScript Libraries & Widgets | |
| Infinite Scroll JavaScript library loading page content automatically while scrolling | 731.1K sites |
| Lightbox JavaScript script displaying images in an overlay popup | 5.9M 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 |
| Media, Maps & Social | |
| Responsive Lightbox & Gallery WordPress plugin displaying image galleries in lightbox popups | 176.4K 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 |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 16.4M 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 |
| Auberge | 2K sites |
| GreenGeeks Shared and WordPress web hosting provider | 108.4K sites |
| Yoast | 13.7M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 8.4M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 5.8M sites |
| Sowb | 416K sites |
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