🔒 SSL Certificate Checker
Check SSL certificate validity, expiry, chain, and configuration for any domain.
What does this tool check?
This SSL checker validates your website's SSL/TLS certificate and configuration, including:
- Certificate validity — Is the certificate currently valid and not expired?
- Certificate chain — Is the full chain properly configured up to a trusted root?
- HSTS — Is HTTP Strict Transport Security enabled?
- Key strength — Is the certificate using secure key sizes?