SSL Certificate Checker

Check HTTPS certificate validity, expiry date, issuer, domain coverage, SAN names, signature type, and SSL health in seconds.

Check SSL Certificate

What Does This SSL Checker Do?

This tool checks the SSL/TLS certificate installed on a domain and helps confirm that HTTPS is valid, trusted, and not close to expiry.

  • Checks certificate validity and expiry date.
  • Shows issuer, subject, serial number, and covered domains.
  • Detects expired or soon-to-expire certificates.
  • Useful for website security, SEO, and trust checks.

Checking DNS records...

This can take a few moments while we check public DNS records and verify domain configuration.

Preparing DNS lookup Reading certificate issuer and validity dates Reviewing Expiry, SPF, DMARC, and security records