Detects supported HTTP protocol versions
This checker detects which HTTP protocol versions are supported by the website, including HTTP/2 and HTTP/3 capabilities. The checker analyzes Alt-Svc header for HTTP/3 support, actively negotiates HTTP/2 connections, detects server capabilities and protocol support, and validates modern HTTP protocol adoption.
This checker detects which HTTP protocol versions are supported by the website, including HTTP/2 and HTTP/3 capabilities. It analyzes Alt-Svc header for HTTP/3 support, actively negotiates HTTP/2 connections, detects server capabilities and protocol support, and validates modern HTTP protocol adoption.
| Status | Condition | Test Logic |
|---|---|---|
| SUCCESS | HTTP/3 supported | HTTP/3 advertised via Alt-Svc header |
| WARNING | HTTP/2 supported | HTTP/2 supported but no HTTP/3 advertisement |
| FAIL | Only HTTP/1.x | Only HTTP/1.x detected, no modern protocols |
Performance Issues: Older HTTP versions (1.x) are slower and less efficient than modern protocols. Poor User Experience: Slower loading times can lead to increased bounce rates and reduced engagement. Competitive Disadvantage: Modern HTTP versions provide better performance and security.
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