SSL/TLS Certificate Inspector

This tool connects to a remote host over TLS and inspects the certificate it presents.

How to use:

1. Enter the target Hostname, for example example.com.
2. Set the Port; in most cases this will be 443.
3. Click Inspect Certificate to establish the TLS connection.
4. Review the certificate subject, issuer, validity dates, thumbprint, TLS protocol, cipher suite, SAN entries, and certificate chain.
5. Use this to quickly check expiry windows, hostname coverage, and the chain presented by a live endpoint.