| Ecommerce & Shopping Carts | |
| Shopify Hosted ecommerce platform for building and running online stores | 7.1M sites |
| Payments & Checkout | |
| PayPal Online payment platform for sending and accepting money | 3.9M sites |
| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 49.9M sites |
| Google Optimize Google's website A/B testing and personalization tool. | 71.3K sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 53.8M sites |
| Advertising & Conversion Tracking | |
| Google Ads Google advertising platform for search and display campaigns | 6M sites |
| Google Ads Conversion Tracking Tag measuring conversions from Google advertising campaigns | 4M sites |
| Email & Push Marketing | |
| Klaviyo Email and SMS marketing platform for ecommerce brands | 1.7M sites |
| Hosting & Cloud Providers | |
| AWS Amazon cloud platform offering compute, storage, and hosting services | 126.7M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 208.7M sites |
| Google Hosted Libraries Google CDN serving popular open-source JavaScript libraries | 8.2M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 129.2M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 157.2M sites |
| JavaScript Libraries & Widgets | |
| jQuery Widely used JavaScript library simplifying DOM manipulation, events, and AJAX | 93.8M sites |
| Social Media & Community | |
| Pinterest Social platform whose save buttons and embeds appear on sites | 379.1K sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 133.1M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 94.4M sites |
| other | |
| Vidjet | 887 sites |
| Klaviyo: Email Marketing & SMS Marketing & Email | 553.7K sites |
| Blockify Fraud Filter, Blocker Security & Privacy | 36K sites |
| Upload‑Lift Image Upload Commerce & Selling | 10.7K sites |
| Tabs Studio Content & Media | 9.7K sites |
| LPO Live Product Options Commerce & Selling | 4.4K sites |
| Digiloop Product Descriptions Content & Media | 1.5K sites |
| Hulk GDPR Cookie Consent Bar Forms & Popups | 658 sites |
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