| Web Analytics & Measurement | |
| Google Analytics Google platform measuring website traffic and visitor behavior | 61.2M sites |
| Communications | |
| Amazon SES Amazon service for sending transactional and bulk email | 1.3M sites |
| Hosting & Cloud Providers | |
| AWS Amazon cloud platform offering compute, storage, and hosting services | 112.7M sites |
| Amazon S3 Amazon cloud object storage for files and static assets | 6M sites |
| Amazon Web Services Amazon cloud platform offering compute, storage, and hosting | 14.9M sites |
| CDN & Edge Delivery | |
| Cloudflare Global CDN and edge platform delivering and protecting websites | 188.1M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 141.3M sites |
| Web Servers & Operating Systems | |
| HTTP/3 Modern web transport protocol over QUIC for faster connections | 163.7M sites |
| Front-End Frameworks & UI Toolkits | |
| PWA Progressive web app technology enabling installable, offline-capable sites | 32.1M sites |
| React JavaScript library for building component-based user interfaces | 31.6M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 78.8M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 160.2M sites |
| other | |
| Algolia Hosted search and discovery API for sites and apps. | 185.9K sites |
| Reflex | 2 sites |
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