| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 49M sites |
| Google Tag Manager Tag management system deploying analytics and marketing tags without code | 53M sites |
| Hosting & Cloud Providers | |
| One-Network Network operator identifier detected via hosting infrastructure | 534.3K sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 122.9M sites |
| Web Servers & Operating Systems | |
| Varnish HTTP reverse proxy and caching accelerator for web content | 5.8M sites |
| Front-End Frameworks & UI Toolkits | |
| PWA Progressive web app technology enabling installable, offline-capable sites | 27.9M sites |
| Vue.js Progressive JavaScript framework for building user interfaces | 6M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 62.4M sites |
| SEO & Content Discovery | |
| Ahrefs SEO toolset for backlinks, keywords, and site audits | 305K sites |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 127.7M sites |
| other | |
| Hermes Parcel delivery and logistics shipping carrier service. | 30.9K sites |
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