| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| WordPress Block Editor Block-based content editor built into modern WordPress | 15.7M sites |
| Communications | |
| SendGrid Cloud email delivery service for transactional and marketing mail | 3.8M sites |
| Hosting & Cloud Providers | |
| O2Switch French web hosting provider | 356.9K sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 742.2K sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M 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 | |
| Image Placeholders Low-resolution placeholder images shown while full images load. | 139.4K sites |
| Modern Image Formats Optimization serving next-gen image formats like WebP and AVIF | 288.6K sites |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 74.5M 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 |
| Site Kit Official WordPress plugin connecting Google search and analytics tools | 10.4M sites |
| Site Kit by Google – Analytics, Search Console, AdSense, Speed Analytics | 3.9M sites |
| Mcp | 3.1M sites |
| Redirection SEO | 2.6M sites |
| Ninja Forms Views | 438.6K sites |
| Ninja Forms Submissions | 426.2K sites |
| Seopress | 280.4K sites |
| Clsop | 36.8K sites |
| Novamira | 26.3K sites |
| Freemius for WordPress Other | 188 sites |
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