| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M 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 |
| Hosting & Cloud Providers | |
| Hostopia-Au Hostopia Australia Web Pty Ltd Australian web hosting and reseller services provider network. | 80.2K sites |
| CDN & Edge Delivery | |
| Google Hosted Libraries Google CDN serving popular open-source JavaScript libraries | 10.1M sites |
| Security & Bot Defense | |
| Google Sign-in Google identity service enabling sign-in with a Google account | 1.4M sites |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 16M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M sites |
| Languages & Back-End Frameworks | |
| PHP Server-side scripting language powering a large share of websites | 114.2M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 742.2K sites |
| Modernizr JavaScript library detecting browser feature support | 7.5M sites |
| Underscore.js JavaScript utility library offering functional programming helpers | 6.3M 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 | |
| Twitter Social platform whose embeds and share buttons appear on sites | 626K sites |
| YouTube Video hosting platform whose players embed into web pages | 8M 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 |
| Social Share Icons & Social Share Buttons Other | 10.5K sites |
| Ccf | 4.1K sites |
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