Question 1

What does this tool do?

Accepted Answer

Checks TLS certificate expiry, OCSP stapling visibility, Must-Staple support, host matching against SAN/CN, endpoint consistency across resolved IPs, and the presented certificate chain for expiry bottlenecks.

Question 2

Can I test a URL with a custom port?

Accepted Answer

Yes. Enter a hostname, domain, IP, or full URL. If a port is included, it is used for the TLS handshake.

TLS Certificate Expiry Monitor

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