SSL Clock

Check any SSL certificate. Get a straight answer.

Expiry date, issuer, hostname and chain in seconds. If something's wrong, we tell you how to fix it.

A domain, host:port, or a full URL. Port 443 by default.

What we check

  • Expiry date and days left
  • Issuer
  • Hostnames covered
  • Chain completeness
  • Whether the host answers

One check is a snapshot

Certificates change. Renewals fail. Turn this check into a watch and we'll tell you the moment it matters.

Check a site with the free SSL checker or see pricing. Read the 47-day certificate timeline and Let's Encrypt expiry emails.

FAQ

Is it free?

Yes, unlimited.

Do you store the domain?

No. Domains you enter in the free checker are checked and then discarded. We don't save them.

Why does my browser show a warning but the cert isn't expired?

Usually a hostname mismatch or missing intermediate. Our result tells you which.