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SSL Certificate Checker

The SSL Certificate Checker is a free online tool that helps you verify the health and validity of SSL certificates. It provides crucial details like certificate validity status (valid or expired), ex piration date, issuer, encryption algorithm, key strength, certificate chain, and more — all without requiring a login or registration. A useful resource for web developers, site owners, and security professionals.

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SSL Certificate Checker
Enter domain without http:// or https://
Quick Tests
SSL Information

SSL (Secure Sockets Layer) and its successor TLS (Transport Layer Security) are protocols for establishing authenticated and encrypted links between networked computers.

  • Encryption: Protects data in transit
  • Authentication: Verifies server identity
  • Integrity: Prevents data tampering

  • DV (Domain Validated): Basic validation
  • OV (Organization Validated): Company verification
  • EV (Extended Validation): Highest validation
  • Wildcard: Covers subdomains
  • Multi-Domain: Multiple domains
SSL Certificate Results

Enter a domain to check SSL certificate

Certificate Details
Certificate details will appear here after check
Security Recommendations
Recommendations will appear here after SSL check
Check History

Your SSL check history will appear here

How to Use This Tool

Usage instructions coming soon!
Practical Use Cases
Check if an SSL certificate is valid or expired.
Monitor upcoming SSL certificate expiration for timely renewals.
Verify certificate issuer and encryption strength (e.g., 2048-bit).
Export SSL certificate data for audits or backups.

Key Features

Validity & Expiration Check

See if SSL is valid or expired and how many days until expiration.

Issuer Info

Find out which CA issued the certificate (Let’s Encrypt, DigiCert, etc.).

Encryption & Key Strength

Check encryption algorithm and key strength like SHA256-RSA and 2048-bit.

Certificate Chain & Raw Data

Inspect the certificate chain and raw security settings.

Export in PEM or JSON

Download certificate data in common formats for analysis or backup.

Frequently Asked Questions

Yes, the tool is 100% free and requires no registration.

You can view certificate validity, expiration dates, issuer details, encryption algorithm, key strength, the certificate chain, and download data in PEM or JSON formats.

No, you can use the tool directly in your browser with no login required.

Regular checks help ensure your site stays secure, avoids browser warnings, and remains trustworthy to visitors.

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