Est. monthly visits
22K
| Business Email & Productivity | |
| Microsoft 365 Microsoft suite for business email, office apps, and collaboration | 18.2M sites |
| Hosting & Cloud Providers | |
| Hetzner German provider of dedicated servers and cloud hosting | 6M sites |
| Security & Bot Defense | |
| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
| Web Servers & Operating Systems | |
| Apache HTTP Server Long-established open-source web server software | 79.2M sites |
| Front-End Frameworks & UI Toolkits | |
| Bootstrap Popular CSS and component framework for responsive layouts | 43.5M sites |
| JavaScript Libraries & Widgets | |
| Lightbox JavaScript script displaying images in an overlay popup | 7.6M sites |
| Swiper Modern touch slider and carousel library for web and mobile | 25M sites |
| Performance & Optimization | |
| Priority Hints Browser resource hints signaling fetch priority for faster loading | 74.5M sites |
| Media, Maps & Social | |
| YouTube Video hosting platform whose players embed into web pages | 8M sites |
| Fonts & Icons | |
| Bootstrap Icons Free icon library from the Bootstrap project | 3.6M sites |
| Font Awesome Popular icon library and toolkit for scalable web icons | 71.2M sites |
| Google Font API Google service delivering free web fonts to websites | 105.7M sites |
| other | |
| ACME/Let's Encrypt Free TLS certificates issued automatically over the ACME protocol | 11.7M sites |
| Microsoft Excel Spreadsheet application, detected from exported files and documents | 2.6K sites |
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