| Business Email & Productivity | |
| Microsoft 365 Microsoft suite for business email, office apps, and collaboration | 18.2M sites |
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| Cloudflare Global CDN and edge platform delivering and protecting websites | 161.4M sites |
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| HSTS HTTP header forcing browsers to use secure HTTPS connections | 131.7M sites |
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| HTTP/3 Modern web transport protocol over QUIC for faster connections | 149.4M sites |
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| Astro Web framework building fast content-focused sites | 4M sites |
| JavaScript Libraries & Widgets | |
| Mermaid JavaScript library rendering diagrams and flowcharts from text. | 20.7K sites |
| other | |
| Cloudflare Pages | 385 sites |
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