| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 141.3M sites |
| Web Servers & Operating Systems | |
| Nginx High-performance web server and reverse proxy widely deployed | 162.6M sites |
| SEO & Content Discovery | |
| Open Graph Metadata protocol controlling how page links preview on social platforms | 160.2M sites |
| Fonts & Icons | |
| Google Font API Google service delivering free web fonts to websites | 111.5M sites |
| other | |
| Fl8-To | 40 sites |
A free account doubles your daily searches.
