| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 10.9M sites |
| Payments & Checkout | |
| PayPal Online payment platform for sending and accepting money | 4.5M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| Jetpack Automattic plugin adding security, performance, and site tools to WordPress | 2.7M sites |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| WordPress Site Editor Full-site editing interface built into modern WordPress | 5.1M sites |
| Hosting & Cloud Providers | |
| Telehouse-As Colocation and network operator running Telehouse data centres | 49.2K sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| Lightbox JavaScript script displaying images in an overlay popup | 7.6M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 114.7M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 53M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| WP-Optimize WordPress plugin cleaning the database and optimizing performance | 704K sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M 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 |
| Redirection SEO | 2.6M sites |
| Wpcom | 2.2M sites |
| My Jetpack | 2.1M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 2.1M sites |
| Wc Push Notifications | 708.8K sites |
| Two Factor Security & Privacy | 644.8K sites |
| Paypal | 466.7K sites |
| Payments | 438.2K sites |
| WooCommerce Analytics Commerce & Selling | 371.5K sites |
| Real Utils | 259.3K sites |
| Real Product Manager Wp Client | 249.4K sites |
| Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns Design & Themes | 112.9K sites |
| Advanced Db Cleaner | 108.8K sites |
| Realmedialibrary | 102.2K sites |
| Real Media Library | 100K sites |
| Smart Slider 3 Content & Media | 73.6K sites |
| Crop_thumbnails | 39.9K sites |
| Pgc_simply_gallery | 30.6K sites |
| Wcpa | 29.5K sites |
| Wc Shipstation | 23.1K sites |
| Ccb Gutenberg | 17.3K sites |
| Create Block Theme Design & Themes | 13.4K sites |
| Pgc Sgb | 12.6K sites |
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