How do I check if an SSL certificate is valid?

Enter the domain name (without https://). The tool shows validity status, expiration date, and days remaining.

What does 'expiring soon' mean?

Certificates with 30 days or less until expiration are flagged. Renew them before they expire to avoid service disruption.

Why can't I check some domains?

Domains without SSL/TLS, with connection issues, or behind firewalls may not be checkable. Ensure the domain supports HTTPS on port 443.

SSL Certificate Checker - Verify SSL/TLS Certificate Online | Shub Raj Apps

SSL Certificate Checker

Enter a domain name to check its SSL certificate details, validity, and expiration information.

Verify SSL Certificates and Monitor Expiration

Check SSL/TLS certificate details for any domain to confirm validity, expiration dates, issuer information, and certificate chain. Useful for monitoring your own sites or auditing third‑party endpoints.

What This Tool Shows

Validity status: Valid, expired, or expiring soon (within 30 days).
Issuer information: Certificate Authority (CA) that issued the certificate.
Expiration dates: When the certificate was issued and when it expires.
Subject details: Domain or organization name on the certificate.
Subject Alternative Names: Additional domains covered by the certificate.

Use Cases

Monitoring: Track expiration dates for your domains and subdomains.
Troubleshooting: Verify certificate configuration when debugging connection issues.
Audits: Check certificate details for partner sites or API endpoints.
Compliance: Ensure certificates meet policy requirements.

Important Notes

Certificates expiring within 30 days are flagged as "expiring soon"—renew them promptly.
Some certificates may include multiple domains via Subject Alternative Names (SANs).
If a domain doesn't have SSL/TLS, you'll see a connection error.