What it checks
How long the certificate the server presents has left before it expires, and whether that is within 30 days.
A pass means: The certificate is not close to expiry.
Possible findings
Certificate expires soon
Severity: LowConfidence: ConfirmedKind: Security issue
What we found
The certificate expires within 30 days.
Why it matters
If renewal does not happen in time, visitors will see a certificate warning.
How to fix it
Renew the certificate now, or check that automated renewal is working.