SSL Checker – Test Certificate Security
Free SSL/TLS certificate checker tool. Check certificate validity, expiry date, security score, protocol version, and certificate chain. Instant SSL analysis.
Check SSL Certificate
Enter a domain name to check its SSL/TLS certificate
How to SSL Checker – Test Certificate Security
1
Enter domain
Type the domain name you want to check (e.g., example.com). No need to include https:// prefix.
2
Check SSL
Click 'Check SSL' to analyze the certificate. The tool will connect to the server and retrieve certificate details.
3
Review results
View security score, certificate details, expiry date, protocol version, cipher suite, and certificate chain. Copy details or follow recommendations.
Features
- Check SSL certificate validity and trust
- View expiry date with days remaining countdown
- Security score (0-100) with detailed rating
- Certificate chain visualization
- Protocol version detection (TLS 1.2, 1.3)
- Cipher suite analysis
- Key strength verification (2048-bit, 4096-bit)
- Security warnings and recommendations
- Copy certificate details to clipboard
- No registration required
- 100% free and unlimited checks
Why Use This Tool?
- Prevent certificate expiry and downtime
- Verify SSL configuration is correct
- Identify security weaknesses before hackers do
- Check certificate issuer and trust chain
- Monitor encryption strength
- Ensure HTTPS compliance for SEO
- Verify TLS 1.3 support
- Get instant security recommendations