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Protocol and cipher support could not be tested

InfoConfirmedtls.protocols.probe-unavailable

What this check looks for

We could not run the handshakes needed to find out which TLS versions this server accepts, so this part of the report is missing rather than clear.

Why it matters

An untested check is not a passing check. This is here so an outage on our side never reads as good news about your server — nothing below is an assurance that legacy protocols are disabled.

What it costs your score

This check never deducts. It reports a fact — or reports that something could not be verified — and is shown on the report without moving the score.

Severity
info
Default confidence
confirmed
Status when triggered
info
Deduction
0 points
Family cap
none
Category
TLS
Module
Tls protocols
Fix owned by
third party
In the ruleset since
2026.09

How the whole score is calculated

Technical detail

‹reason›

Enumerating protocol versions requires a handshake per version with a ClientHello we control, which no Cloudflare Worker can produce — connect() exposes no version or cipher controls (docs/22 §2.3). These probes run on a dedicated host, and when that host is unreachable the check is reported as not run. Re-running the scan later will complete it.

Standards and references

Test this on your domain

Run the check that produces this finding, on its own, against any domain.

Open the tls protocols checker

Other tls protocols checks