PQS Radar

Is your website ready for quantum computers?

Enter a domain. We check TLS 1.3, post-quantum hybrid key exchange (ML-KEM), and the certificate's algorithms against NIST FIPS 203/204.

Also check SSH on port 22

A — PQC key exchange, TLS 1.3, nothing weak. Only quantum-safe signatures remain to come.

B — PQC key exchange is on. The certificate is still RSA/ECDSA, which is normal today.

C — TLS 1.3 but classical key exchange only. Recorded traffic could be decrypted later.

D — No TLS 1.3, so post-quantum key exchange is impossible.

F — Weak today: old TLS versions, broken ciphers or hashes.