| Payments & Checkout | |
| Braintree PayPal-owned payment gateway processing cards and digital wallets. | 29K sites |
| Google Pay Google digital wallet for online and in-store payments | 407.4K sites |
| Zip Buy-now-pay-later installment payment service for online purchases. | 11.5K sites |
| CMS & Website Builders | |
| WordPress Open-source CMS powering websites, blogs, and content management | 75.7M sites |
| Web Analytics & Measurement | |
| Cloudflare Browser Insights Cloudflare real-user monitoring capturing page performance metrics | 5.3M sites |
| 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 |
| DoubleClick for Publishers (DFP) Google ad serving and management platform for publishers. | 56.5K sites |
| Facebook Pixel Meta tracking pixel measuring ad conversions and building audiences | 10.1M sites |
| Google AdSense Google program displaying ads and monetizing site content | 4.7M sites |
| Google Publisher Tag Google Ad Manager tag serving ads into page slots | 455.6K sites |
| theTradeDesk Programmatic advertising demand-side platform. | 130.3K sites |
| Forms & Lead Capture | |
| Mailcheck JavaScript utility suggesting corrections for mistyped email addresses | 1.2M sites |
| Hosting & Cloud Providers | |
| Google Cloud Google cloud platform for hosting, compute, and storage | 42.9M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 161.4M sites |
| Google Cloud CDN Google content delivery network serving cached content from edges | 38.5M 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 | |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 16M sites |
| Privacy & Cookie Consent | |
| iubenda Compliance solution for privacy policies and cookie consent | 652.3K sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 149.4M sites |
| 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 | |
| PWA Progressive web app technology enabling installable, offline-capable sites | 29.8M sites |
| JavaScript Libraries & Widgets | |
| Backbone.js JavaScript framework structuring apps with models and views | 742.2K 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 |
| punycode JavaScript utility encoding internationalized domain names | 1.3M sites |
| Databases & Caching | |
| MySQL Popular open-source relational database used by many web applications | 77.9M sites |
| Media, Maps & Social | |
| Google Maps Embeddable interactive maps and location services from Google | 12M sites |
| 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 | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| Fonts & Icons | |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| other | |
| Hotjar Website analytics with heatmaps and session recordings | 258.3K sites |
| Redirection SEO | 2.6M sites |
| Simple Page Ordering Design & Themes | 141.7K sites |
| V1 | 40.9K sites |
| WP-Stateless – Google Cloud Storage Security & Privacy | 3.2K sites |
| Podcasts Other | 40 sites |
| Wmt Video | 14 sites |
| Wmt Stats App | 11 sites |
| Wmt Bulk Schedule Api | 11 sites |
| Wmt Bulk Roster Api | 11 sites |
| Wmt Mobile App | 11 sites |
| Wmt Twitter | 10 sites |
| Wmt Instagram Api | 5 sites |
| Wmt Tv App | 5 sites |
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