tools ▸ ssl checker
Connect to any host and port to see the certificate, its issuer and expiry, every hostname it covers, the chain served and the TLS version negotiated.
ssl checker ▸ explained
Check SSL certificate validity, issuer, expiry date, SAN names, chain and TLS version.
Hosting with free auto-SSLFree certificates last 90 days. We warn you when fewer than 21 days remain.
A certificate is only valid for the names in its Subject Alternative Name list — check www and the bare domain.
A missing intermediate makes some browsers and Android devices show warnings even if the certificate is valid.
related ▸ more free tools
faq ▸ before you buy