SSL Checker
Free SSL certificate checker. Inspect the SSL/TLS certificate of any domain — issuer, validity dates, chain, and protocol details.
About the SSL Checker
The SSL Checker performs a server-side request to the target you specify. Only the result is returned to you. We do not store the data you submit.
Free SSL certificate checker. Inspect the SSL/TLS certificate of any domain — issuer, validity dates, chain, and protocol details. It's free, requires no sign-up, and works on any device — desktop or mobile.
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Frequently Asked Questions
What does the SSL checker do?
Our SSL checker performs a TLS handshake with the target domain on port 443 and inspects the certificate. It shows the issuer, validity dates, subject alternative names, protocol, and cipher.
Can I check any domain?
Yes, you can check any domain that has an SSL certificate. The tool connects directly to the domain's server to retrieve the certificate.