| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 57.6M sites |
| WordPress Themes & Plugins | |
| Elementor Popular drag-and-drop page builder plugin for WordPress | 17.5M sites |
| Customer Chat & Support | |
| Intercom Customer messaging platform with live chat, bots, and support tools. | 20.6K sites |
| Forms & Lead Capture | |
| Mailcheck JavaScript utility suggesting corrections for mistyped email addresses | 889K sites |
| WPForms Beginner-friendly WordPress drag-and-drop form builder | 657.2K sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 191.7M sites |
| Security & Bot Defense | |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 13.1M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 70.4M sites |
| Ubuntu Popular Linux operating system used for servers | 15.6M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 91.4M sites |
| JavaScript Libraries & Widgets | |
| Swiper Modern touch slider and carousel library for web and mobile | 19.7M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 4.9M sites |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 92.3M sites |
| jQuery Migrate Compatibility shim restoring deprecated jQuery APIs for older code | 39.8M sites |
| punycode JavaScript utility encoding internationalized domain names | 1M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 59.5M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 62.4M sites |
| WP Rocket Premium WordPress caching and performance optimization plugin | 3.1M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 127.7M sites |
| RSS Web feed format syndicating site content for readers and aggregators | 54.2M sites |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 16.2M sites |
| Yoast | 13.7M sites |
| Elementor Website Builder – more than just a page builder Design & Themes | 13.4M sites |
| Elementor Ai | 11.1M sites |
| Elementor One | 9.1M sites |
| Mcp | 5.8M sites |
| Wpforms | 3.9M sites |
| Redirection SEO | 3.6M sites |
| Wp Rocket | 2.3M sites |
| Elementskit | 1.5M sites |
| My Test | 17 sites |
| My Elementor Data | 12 sites |
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