| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Forms & Lead Capture | |
| Ninja Forms Drag-and-drop WordPress form builder plugin | 184.5K sites |
| Hosting & Cloud Providers | |
| Udag German domain registrar and web hosting services provider. | 1.3M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 153.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Performance & Optimization | |
| 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 |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 21.4M sites |
| Yoast SEO Premium Premium WordPress SEO plugin with advanced optimization features | 1.9M sites |
| Yoast | 9.2M sites |
| Mcp | 3.1M sites |
| Yoast Duplicate Post Other | 1.8M sites |
| Wp Rocket | 1.7M sites |
| Code Snippets Design & Themes | 1.1M sites |
| Otgs | 769.5K sites |
| Wpml | 722.5K sites |
| tribe Other | 497.5K sites |
| FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP Other | 468.2K sites |
| Ninja Forms Views | 438.6K sites |
| Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder Forms & Popups | 428.3K sites |
| Ninja Forms Submissions | 426.2K sites |
| Tec | 409.2K sites |
| Liquidweb | 266.2K sites |
| Facetwp | 72.8K sites |
| Shariff Wrapper Security & Privacy | 48.5K sites |
| Block Visibility — Conditional Visibility Control for the Block Editor Other | 41.3K sites |
| AAA Option Optimizer Other | 9.4K sites |
| Greyd | 1.9K sites |
| Training – Courses Other | 36 sites |
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