| 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 |
| 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 |
| Advertising & Conversion Tracking | |
| DoubleClick Floodlight Google tag tracking conversions from advertising campaigns | 3.3M sites |
| Google AdSense Google program displaying ads and monetizing site content | 4.7M sites |
| Rakuten Advertising Affiliate marketing and advertising network run by Rakuten | 13.3K sites |
| Marketing & Email Campaigns | |
| Partnerize Partnership and affiliate marketing management platform for brands. | 9.7K sites |
| Customer Chat & Support | |
| Booking.com Online travel booking platform for accommodation and transport | 21.4K sites |
| Booking.com widget Embeddable booking and review widget for accommodation listings | 20K sites |
| Hosting & Cloud Providers | |
| As17378 - Tierpoint, Llc Datacenter, colocation, and cloud hosting provider network operator. | 157K sites |
| eBay Partner Network Affiliate program for publishers linking to eBay listings | 6.4K sites |
| CDN & Edge Delivery | |
| BootstrapCDN CDN delivering Bootstrap CSS and JavaScript assets | 2.1M sites |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 161.4M sites |
| Google Hosted Libraries Google CDN serving popular open-source JavaScript libraries | 10.1M sites |
| cdnjs Free public CDN hosting popular open-source JavaScript libraries | 18.2M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 16M sites |
| Web Servers & Operating Systems | |
| LiteSpeed High-performance web server known for speed and caching | 39.6M 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 |
| Onsen UI UI framework for building hybrid and mobile web apps | 3.1M sites |
| W3.CSS Lightweight CSS framework by W3Schools. | 126.6K sites |
| JavaScript Libraries & Widgets | |
| Popper JavaScript positioning engine for tooltips and popovers | 5.4M 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 | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 74.5M sites |
| Media, Maps & Social | |
| AddToAny Social sharing buttons widget for websites | 744.5K sites |
| AddToAny Share Buttons WordPress plugin adding social sharing buttons | 494.6K sites |
| SEO & Content Discovery | |
| Ahrefs SEO toolset for backlinks, keywords, and site audits | 359.5K sites |
| 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 |
| Yoast SEO WordPress plugin managing on-page SEO, sitemaps, and metadata | 21.4M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| other | |
| GetYourGuide Online marketplace for booking travel tours, activities, and experiences. | 36.6K sites |
| MailChimp | |
| Rakuten Japanese online retail and internet services group | 15.6K sites |
| Yoast | 9.2M sites |
| Akismet Anti-spam: Spam Protection Social & Community | 4M sites |
| Monsterinsights | 1.4M sites |
| Mc4wp | 1M sites |
| Complianz_tc | 220.6K sites |
| IndexNow Plugin SEO | 107.3K sites |
| Tnp | 85K sites |
| Pretty Links | 79.3K sites |
| Beautiful Cookie Consent Banner Security & Privacy | 35.4K sites |
| Turbo Ecommerce Commerce & Selling | 772 sites |
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