| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Advertising & Conversion Tracking | |
| Facebook Pixel Meta tracking pixel measuring ad conversions and building audiences | 10.1M sites |
| Hosting & Cloud Providers | |
| Bluehost Popular shared and WordPress web hosting provider. | 8.7M sites |
| Bluehost/EIG Web hosting provider offering shared and WordPress plans | 2.2M 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 |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 43.5M sites |
| JavaScript Libraries & Widgets | |
| Lightbox JavaScript script displaying images in an overlay popup | 7.6M sites |
| Moment Timezone JavaScript library adding time zone support to Moment date handling. | 160.2K sites |
| Moment.js JavaScript library for parsing and formatting dates | 2.7M 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 |
| prettyPhoto jQuery lightbox library for images, video, and content | 2.3M 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 |
| WP-Optimize WordPress plugin cleaning the database and optimizing performance | 704K sites |
| SEO & Content Discovery | |
| RSS Web feed format syndicating site content for readers and aggregators | 71.1M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| other | |
| HostGator Shared and reseller web hosting provider | 4.7M sites |
| Elementor One | 5.7M sites |
| Jetpack – WP Security, Backup, Speed, & Growth Security & Privacy | 5.1M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Image Optimizer | 646.8K sites |
| Pum | 537.2K sites |
| Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder Marketing & Email | 397.8K sites |
| Ea11y | 331.6K sites |
| Manage – Centralized site maintenance and monitoring Design & Themes | 58.3K sites |
| Showpass WordPress Extension Productivity & Operations | 419 sites |
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