Est. monthly visits
3.8B
Est. by device type
61%
39%
Est. employees
5,001 to 20,000
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| reCAPTCHA Google service distinguishing humans from bots to block spam | 16M sites |
| Web Servers & Operating Systems | |
| Envoy High-performance service proxy for cloud-native applications | 2M sites |
| Varnish HTTP reverse proxy and caching accelerator for web content | 6.1M sites |
| Front-End Frameworks & UI Toolkits | |
| PWA Progressive web app technology enabling installable, offline-capable sites | 29.8M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 151.8M sites |
| other | |
| Spotify Web API REST API for Spotify catalog data and playback control | 14.2K sites |
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