SSL Certificate Checker
Verify SSL/TLS certificates for any website. Check validity, expiration, and security configuration instantly.
Example: example.com or https://example.com
Understanding SSL/TLS Certificates
SSL (Secure Sockets Layer) and its successor TLS (Transport Layer Security) are protocols for establishing authenticated and encrypted links between networked computers.
Why SSL Matters
- Data Encryption: Protects sensitive information in transit
- Authentication: Verifies server identity
- Trust Indicators: Shows security status to visitors
- SEO Benefits: Google ranks HTTPS sites higher
- Compliance: Required for PCI DSS and other standards
Certificate Types
Domain Validated (DV)
Basic validation, issued quickly. Ideal for personal sites and blogs.
Organization Validated (OV)
Verified business information. Best for business websites.
Extended Validation (EV)
Highest validation level. Shows company name in browser.
SSL Best Practices
- Always use certificates from trusted Certificate Authorities (CAs)
- Set up automatic renewal before expiration
- Implement HTTP Strict Transport Security (HSTS)
- Use 2048-bit or stronger RSA keys
- Regularly check certificate validity with tools like this
- Monitor for mixed content issues after migrating to HTTPS
Help Improve This Tool
We are committed to making SecureToolbox the best set of security tools available. Your feedback helps us:
- Identify and fix issues quickly
- Prioritize new features and improvements
- Understand how you use our tools
- Create better documentation and examples
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