A
AiTechWorlds
AiTechWorlds
Check any HTTPS site’s SSL certificate — issuer, validity dates, days to expiry, and SSL Labs grade.
Powered by the free Qualys SSL Labs API. Results may be cached for popular hosts.
The SSL Certificate Checker inspects any public HTTPS website's TLS certificate and security configuration. Enter a domain to see the certificate's issuer, common name, valid-from and valid-until dates, days remaining until expiry, and the overall Qualys SSL Labs grade. It is free, requires no signup, and helps you catch expiring or misconfigured certificates before they break your site.
Enter a domain
Type the hostname (e.g. example.com) of the HTTPS site you want to check.
Run the check
Click Check. A fresh SSL Labs scan can take up to a minute; cached results return faster.
Review the certificate
See the issuer, validity dates, days to expiry, key, and signature algorithm.
Read the grade
The SSL Labs letter grade summarizes the server's TLS security.
100% Private — No Server Required
All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.
Last reviewed on June 14, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.