Is your SSL setup secure?

Verify the certificate, HSTS configuration and HTTPS redirect chain for any domain

Live TLS handshake & redirect trace No account required
What gets checked Certificate chain Expiry date HSTS HTTP → HTTPS redirect TLS protocol

Why SSL matters

A valid SSL certificate is a baseline trust signal — required for HTTPS, modern browser features and search ranking. Expired certs break checkout pages instantly.

What gets checked?

Certificate validity, issuer, expiry, protocol version, HSTS max-age, includeSubDomains, and whether HTTP requests are correctly redirected to HTTPS.

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For e-commerce

If you run a webshop, expired or mis-configured SSL is a checkout-killer. This tool gives you a quick health-check before customers see a browser warning.

Read the docs →