SSL Certificate Checker

Check SSL certificate status, validity, and security details

Enter domain without https:// - we'll check the SSL certificate on port 443
About SSL Certificate Checker

SSL (Secure Sockets Layer) certificates encrypt data transmitted between a website and its visitors, ensuring secure communication and building trust.

What We Check:
  • Certificate validity and expiration date
  • Certificate issuer and authority
  • Signature algorithm strength
  • Subject Alternative Names (SAN)
  • Certificate chain validation
  • Wildcard certificate detection
Why SSL Matters:
  • Security: Encrypts sensitive data like passwords and credit cards
  • Trust: Shows visitors your site is legitimate and secure
  • SEO: Google gives ranking boost to HTTPS sites
  • Compliance: Required for PCI DSS and other regulations
  • Performance: Enables HTTP/2 for faster loading