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About TLSight

TLSight is a free security tool that audits your domain's TLS/SSL configuration and gives it a grade from A to F. No account required. Scan results are not stored on our servers.

What we check

  • Certificate details — validity, issuer, key type, SANs
  • Protocol support — TLS 1.0 through 1.3
  • Security headers — HSTS, Certificate Transparency
  • Post-Quantum Cryptography — PQC readiness detection

How it works

Enter any domain and TLSight connects to it, analyzes the handshake, and produces a shareable report card. Each scan is performed in real time and discarded immediately after the results are returned to you.

Privacy

We don't store scan results, require accounts, or collect personal information. See our Privacy Policy for full details.

Contact

Questions or feedback? Reach us at support@tlsight.com.

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