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HTTP/2 & HTTP/3 checker

ALPN h2 support, response status and HTTP/3 advertisement (Alt-Svc).

Runs from
Helsinki, Finland (EU)
Method
TLS with ALPN h2 and one GET over HTTP/2. For HTTP/3, the Alt-Svc advertisement plus one QUIC version-negotiation packet. No HTTP/3 request is made.
Limit
20 checks per 10 minutes

Monitor this on a schedule and get an alert when it fails.

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