Free Tool

    SSL Certificate Checker

    Verify SSL/TLS certificate validity, expiry date, issuer, and SAN entries for any domain.

    SSL Certificate Checker

    What Is an SSL Certificate?

    An SSL/TLS certificate authenticates a website's identity and enables an encrypted connection between the server and visitors' browsers. It ensures that sensitive data like passwords and credit card numbers are transmitted securely.

    Why Check Your SSL Certificate?

    • Prevent service disruptions caused by expired certificates
    • Verify the certificate chain and issuing authority
    • Ensure all domain names are covered by SAN entries
    • Detect misconfigurations before they affect users
    • Maintain trust signals for SEO and user confidence

    Automate SSL Certificate Monitoring

    Get alerted before your SSL certificates expire. Monitor hundreds of domains from one dashboard.

    Start Free Monitoring