SSL · Fix guide
TLS 1.3 not detected
- TLS
- Transport Layer Security
TLS 1.3 improves connection setup and uses modern cryptography, but TLS 1.2 remains acceptable.
What is TLS 1.3?
TLS 1.3 is the newest widely deployed version of Transport Layer Security. It removes obsolete cryptography and usually establishes secure connections faster than earlier versions.
What to do next
- Check whether your CDN or server supports TLS 1.3.
- Enable it alongside TLS 1.2.
- Do not disable TLS 1.2 solely to clear this informational result.
How to verify the fix
Retest with a TLS 1.3-capable client.
When this result may be wrong
This test is informational and can be limited by the checker’s TLS library or an intermediary.
Ready to check again?
Check a domain
Run a fresh report after DNS caches and platform changes have had time to update.