| Ecommerce & Shopping Carts | |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 11.1M sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 77.2M sites |
| WordPress Themes & Plugins | |
| Advanced Custom Fields WordPress plugin for adding custom fields to content editing screens. | 34.5K sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 60.9M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 65.4M sites |
| Marketing & Email Campaigns | |
| MailChimp for WooCommerce Plugin syncing WooCommerce stores with Mailchimp marketing | 329.6K sites |
| Forms & Lead Capture | |
| Gravity Forms Premium WordPress plugin for building advanced forms | 1.3M sites |
| Hosting & Cloud Providers | |
| Strato Strato Ag German web hosting and domain provider | 2.9M sites |
| CDN & Edge Delivery | |
| jsDelivr Free open-source CDN for JavaScript, CSS, and assets | 19.9M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 138.5M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 82.1M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 117.2M sites |
| JavaScript Libraries & Widgets | |
| Select2 JavaScript library enhancing select boxes with search and tags | 1.9M sites |
| Swiper Modern touch slider and carousel library for web and mobile | 25.5M 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 | |
| NitroPack All-in-one caching and speed optimization service | 182.5K sites |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 77.7M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 158.1M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 72.4M sites |
| other | |
| MailChimp | 24.9K sites |
| Yoast | 9.2M 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 |
| Wc Push Notifications | 708.8K sites |
| Webp Converter Content & Media | 412.8K sites |
| Wc Facebook | 277.2K sites |
| Fb_api | 226.4K sites |
| Yith | 177K sites |
| Mailchimp for WooCommerce Commerce & Selling | 163.8K sites |
| Gf | 140.9K sites |
| Mollie | 79.6K sites |
| wetracked.io for WooCommerce Analytics | 487 sites |
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