| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 11.1M sites |
| Payments & Checkout | |
| PayPal Online payment platform for sending and accepting money | 4.6M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 77.2M sites |
| WordPress Themes & Plugins | |
| Jetpack Automattic plugin adding security, performance, and site tools to WordPress | 2.7M sites |
| Email & Push Marketing | |
| Brevo Email marketing and CRM platform for campaigns and automation | 1.3M sites |
| Klaviyo Email and SMS marketing platform for ecommerce brands | 1.8M sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 16M sites |
| Hosting & Cloud Providers | |
| Duocast-As Network operator and hosting provider. | 186.6K sites |
| Web Servers & Operating Systems | |
| LiteSpeed High-performance web server known for speed and caching | 42M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 117.2M sites |
| JavaScript Libraries & Widgets | |
| Packery JavaScript layout library arranging elements in grids | 413.8K sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.4M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 117.3M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 53.9M sites |
| prettyPhoto jQuery lightbox library for images, video, and content | 2.3M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 79.4M sites |
| Performance & Optimization | |
| LiteSpeed Cache WordPress caching and optimization plugin for LiteSpeed servers | 11.4M sites |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 77.7M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 72.4M sites |
| other | |
| DPD European parcel delivery and logistics shipping carrier network. | 32.5K sites |
| Litespeed Cache | 247K sites |
| Royal Mail British postal and parcel delivery carrier service. | 13K sites |
| Contact Form 7 Forms & Popups | 7.3M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Litespeed | 3.8M sites |
| Wc | 3.7M sites |
| Wccom Site | 3.7M sites |
| Wc Admin | 3.7M sites |
| Wc Analytics | 3.7M sites |
| Wc Telemetry | 3.5M sites |
| Wc Admin Email | 3M sites |
| Wpcom | 2.2M sites |
| My Jetpack | 2.1M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 2.1M sites |
| WooCommerce Analytics Commerce & Selling | 371.5K sites |
| Wc Facebook | 277.2K sites |
| Fb_api | 226.4K sites |
| Yith | 177K sites |
| Nextend Social Login | 113.6K sites |
| String locator Productivity & Operations | 106.5K sites |
| Klaviyo Commerce & Selling | 63.1K sites |
| CWILL (Formerly ParcelPanel) – Shipment Tracking, Tracking & Order Tracking for WooCommerce Analytics | 3K sites |
| wetracked.io for WooCommerce Analytics | 487 sites |
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