TLS/SSL Certificate Checker
Check a domain's SSL/TLS certificate details.
Frequently Asked Questions
What is a TLS/SSL checker?
A TLS/SSL checker examines a domain's SSL/TLS certificate to show its validity period, issuer, encryption details, protocol versions, and whether it's properly configured.
How do I check a domain's SSL certificate?
Enter the domain name and the tool connects to the server, retrieves the SSL/TLS certificate, and displays detailed information including expiry date, certificate chain, and supported protocols.
What information does it show?
The tool displays the certificate issuer, validity dates, serial number, signature algorithm, key size, supported TLS versions (1.2, 1.3), and cipher suites.
Can I check if a certificate is about to expire?
Yes, the tool shows the certificate's expiry date and calculates how many days remain until expiration, helping you renew certificates before they cause browser warnings.
Is this tool free?
Yes, ToolDock's TLS/SSL checker is completely free, requires no signup, and runs entirely in your browser.
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