SSL/TLS Checker
Retrieve certificate details and test modern TLS support.
How to Check SSL/TLS Certificates?
- Enter the hostname (e.g., example.com) without https://.
- Optionally change the port (default: 443 for HTTPS).
- Click Check to retrieve certificate details.
- View expiry date, issuer, subject, and TLS version support.
SSL/TLS Certificate Checker
Inspect SSL/TLS certificates for any domain and verify your HTTPS configuration is correct. An expired or misconfigured certificate causes browser warnings that drive users away and can hurt search rankings. This tool retrieves the full certificate chain and checks validity, expiry, and supported TLS versions without requiring any software installation.
What Gets Checked
- Certificate Expiry — Days remaining before the certificate expires (get alerted before users see warnings)
- Issuer & Certificate Authority — Who issued the certificate and whether it's a trusted CA
- Subject / Domain Coverage — Verify the certificate covers your domain including wildcard and SAN entries
- TLS Version — Confirm the server supports TLS 1.2/1.3 and has disabled deprecated TLS 1.0/1.1
Essential for webmasters, developers, and security teams doing pre-launch checks or monitoring certificate renewals.
