| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| WordPress Themes & Plugins | |
| Twenty Twenty-One Default WordPress theme released with the 2021 version | 323.4K sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 59.7M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 63.8M sites |
| Forms & Lead Capture | |
| Contact Form 7 Widely used WordPress plugin for building contact forms | 15.8M sites |
| Hosting & Cloud Providers | |
| Oniaas Network operator and autonomous system for internet infrastructure. | 138.4K sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 161.4M sites |
| cdnjs Free public CDN hosting popular open-source JavaScript libraries | 18.2M sites |
| jsDelivr Free open-source CDN for JavaScript, CSS, and assets | 19.2M sites |
| Security & Bot Defense | |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 16M 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 | |
| Animate.css CSS library providing ready-made animation effects | 7.6M sites |
| OWL Carousel Touch-enabled jQuery carousel and slider library | 10.2M sites |
| WOW JavaScript library revealing CSS animations on scroll | 5.3M 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 |
| Media, Maps & Social | |
| Embed PDF Viewer WordPress plugin embedding PDF documents in pages. | 32.6K 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 |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Contact Form 7 Forms & Popups | 7.3M sites |
| Wordfence Security – Firewall, Malware Scan, and Login Security Security & Privacy | 4M sites |
| Wicked Block Conditions Design & Themes | 403 sites |
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