SSL Certificate Checker
Verify SSL/TLS certificate validity, expiration, and security configuration
About SSL Certificates
SSL/TLS certificates are essential for securing websites and protecting data transmitted between browsers and servers. They encrypt sensitive information like passwords, credit card numbers, and personal data.
What Our SSL Checker Analyzes
- Certificate Validity: Whether the certificate is currently valid and not expired
- Expiration Date: When the certificate will expire and needs renewal
- Certificate Chain: The full chain from your certificate to the root CA
- Protocol Version: The TLS version in use (TLS 1.2, 1.3, etc.)
- Cipher Strength: The encryption algorithm and key size
- Subject Alternative Names: All domains covered by the certificate
Understanding SSL Grades
A+Excellent - Modern TLS 1.3 with strong encryption
AGood - Valid certificate with good configuration
BAcceptable - Minor issues or weak key size
FFailed - Expired, invalid, or insecure
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