| 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 |
| WooCommerce PayPal Checkout Payment Gateway WooCommerce plugin adding PayPal checkout payments. | 60.9K sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 77.2M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 16M sites |
| Web Analytics & Measurement | |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 65.4M sites |
| Hosting & Cloud Providers | |
| Idigital Network operator autonomous system providing hosting or connectivity infrastructure. | 23.5K sites |
| Security & Bot Defense | |
| Really Simple SSL & Security WordPress plugin enforcing HTTPS and hardening site security | 6.5M 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 | |
| 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 |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 79.4M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 77.7M sites |
| SEO & Content Discovery | |
| All in One SEO WordPress plugin managing SEO settings, sitemaps, and metadata | 4.8M sites |
| 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 | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M 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 |
| Wpcom | 2.2M sites |
| My Jetpack | 2.1M sites |
| Jetpack Boost – Website Speed, Performance and Critical CSS Performance & Speed | 2.1M sites |
| Aioseo | 1.5M sites |
| Monsterinsights | 1.4M sites |
| Omapp | 629.4K sites |
| aThemes Blocks Design & Themes | 2.4K sites |
| Premmerce Product Search for WooCommerce Other | 659 sites |
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