SSL Certificate Checker
Comprehensive SSL certificate analysis tool to verify certificate validity, security configuration, and identify potential vulnerabilities.
Why SSL Certificates Matter
SSL certificates encrypt data between websites and visitors, protect against cyber threats, build trust with users, and are a ranking factor for search engines like Google.
SSL Certificate Information
- Certificate Authority: Who issued the SSL certificate
- Validity Period: Start and expiration dates
- Certificate Type: DV, OV, or EV certificate
- Encryption Strength: Key length and encryption algorithm
- Subject Alternative Names: Additional domains covered
- Revocation Status: Whether certificate is revoked
SSL Security Best Practices
- Use certificates from trusted Certificate Authorities
- Implement HTTP to HTTPS redirects
- Enable HSTS (HTTP Strict Transport Security)
- Use strong encryption protocols (TLS 1.2+)
- Regularly monitor certificate expiration dates
- Implement proper certificate chain configuration
- Use wildcard certificates for subdomains when appropriate