Free tool
SSL certificate checker
Enter a domain and see its certificate status, issuer, and expiry date. Free, no signup needed.
What this checks
Certificate validity
Whether the certificate is currently trusted and not expired.
Issuer
Which certificate authority issued it.
Expiry & days remaining
The exact expiry date, and how many days are left.
Hostname match
Whether the certificate actually covers the domain you checked.
Frequently asked questions
Is this SSL checker really free?
Yes. No account or signup is required to check a certificate.
Why would a hostname not match?
A certificate is issued for specific hostnames. If you check a domain the certificate wasn't issued for (for example, checking www.example.com when the certificate only covers example.com), this tool reports a mismatch.
What if my site expires soon?
Renew the certificate with your hosting provider or certificate authority before the expiry date. VeePulse can also monitor it and email you a warning ahead of time. See how on the
SSL monitoring page, or read what happens when an SSL certificate expires.
Does this check anything besides SSL?
For a broader check that also covers availability, HTTPS, domain expiry and response time, use the
free website health check tool instead.