| Ecommerce & Shopping Carts | |
| SkyVerge Developer of WooCommerce ecommerce extensions. | 40.4K sites |
| WooCommerce Open-source ecommerce plugin turning WordPress into an online store | 8.5M sites |
| WooCommerce Subscriptions WooCommerce extension for recurring subscription products. | 70.1K sites |
| Payments & Checkout | |
| jQuery Payment jQuery library for validating and formatting payment card inputs. | 53.3K sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| Blocksy Fast, customizable multipurpose WordPress theme | 604.4K sites |
| Blocksy Companion Companion plugin extending the Blocksy WordPress theme. | 215.1K sites |
| WordPress Block Editor Block-based content editor built into modern WordPress | 12.2M sites |
| Web Analytics & Measurement | |
| Pixelgate | 2.1K sites |
| Hosting & Cloud Providers | |
| Plesk Web hosting control panel for managing servers and sites | 5.6M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 146.9M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 93.5M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 583.5K sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 5M sites |
| 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 |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 94.4M 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 |
| Wc Telemetry | 5.6M sites |
| Wc Admin Email | 4.8M sites |
| Stackable | 155.3K sites |
| Wp Mcp | 633 sites |
| Carticy SiteVitals – Security, Speed, Performance & Database Optimization Commerce & Selling | 17 sites |
| Carticy Installments | 2 sites |
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