PQC Tester
Check if your domain supports Post-Quantum Cryptography
What does this tool do?
It scans your domain to see if your server supports Post-Quantum cryptography key exchanges (like X25519MLKEM768). Many providers like Cloudflare and AWS now enable this by default, if yours doesn't, a simple software update is often all you need.
What is Post-Quantum Cryptography?
PQC is a set of encryption algorithms designed to survive the arrival of quantum computers. It replaces current math, which quantum computers can easily crack, with "quantum-resistant" foundations to secure your data for the long term.
Why is this important?
Adversaries are currently practicing "Harvest now, decrypt later" - stealing encrypted data today to unlock it once quantum computers exist. Enabling PQC now is the only way to ensure your current traffic remains private in the future.
of the top 1M domains already support PQC
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