| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 8.5M sites |
| Payments & Checkout | |
| PayPal Online payment platform for sending and accepting money | 3.9M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 12.2M sites |
| WordPress Site Editor Full-site editing interface built into modern WordPress | 4.1M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 208.7M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 129.2M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 157.2M sites |
| LiteSpeed High-performance web server known for speed and caching | 35.8M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| JavaScript Libraries & Widgets | |
| 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 | |
| LiteSpeed Cache WordPress caching and optimization plugin for LiteSpeed servers | 8.2M sites |
| 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 |
| other | |
| Litespeed Cache | 392.6K sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 8.4M sites |
| Wc | 5.9M sites |
| Wccom Site | 5.8M sites |
| Wc Admin | 5.8M sites |
| Wc Analytics | 5.8M sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 5.8M sites |
| Wc Telemetry | 5.6M sites |
| Wc Admin Email | 4.8M sites |
| Wordfence Login Security Security & Privacy | 4.1M sites |
| Wallet Up – Cash App, Venmo, PayPal, Zelle & QR Code Payments Commerce & Selling | 296 sites |
| Wallet Up Pro | 279 sites |
| Walletup | 277 sites |
| Widewalk – Accessibility Toolbar Design & Themes | 152 sites |
| Wallet Up Checkout for WPForms Other | 49 sites |
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