SSL Certificate Checker
Inspect live TLS certificates, chain trust, hostname match, and expiration from a real handshake.
Enter a public hostname to inspect the live certificate chain.
How to use
- Enter a hostname or https:// URL.
- Select Check SSL.
- Review Certificate Details, Chain, TLS Configuration, and Security Findings tabs.
Examples
Production site
Check your marketing domain to confirm chain trust and days remaining before renewal.
Staging hostname
Compare SAN entries when a certificate covers multiple hostnames.
Single-handshake scope. Private hosts blocked. Not a full TLS vulnerability scan.
FAQ
- Is trust based only on dates?
- No. Chain trust uses the system trust store; hostname match uses CN/SAN.
- Can I check internal hosts?
- No. Private and reserved destinations are blocked.