Vérificateur HTTP/2

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About HTTP/2 Checker

HTTP/2 Checker reports whether a URL is served over HTTP/2 or HTTP/1.1. It also lists the ALPN protocol and a few related headers. HTTP/2 enables multiplexing and is faster on most connections.

How to use it

  1. Paste a URL. The tool reports the protocol, TLS version and a few key headers.

Common use cases

  • Auditing servers for modern protocol support. Diagnosing performance issues.

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