| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 58.6M sites |
| WordPress Themes & Plugins | |
| Oxygen Visual site builder plugin replacing the WordPress theme | 192.8K sites |
| Forms & Lead Capture | |
| Ninja Forms Drag-and-drop WordPress form builder plugin | 141K sites |
| Web Servers & Operating Systems | |
| LiteSpeed High-performance web server known for speed and caching | 35.8M 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 |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 65.2M sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 55.3M sites |
| other | |
| Enixltd | 228.4K sites |
| Ninja Forms Views | 642.4K sites |
| Ninja Forms Submissions | 625.9K sites |
| Breakdance | 82.1K sites |
| Eventward Productivity & Operations | 49 sites |
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