⚛ Quantum Aether
A

Post-quantum TLS readiness

anthropic.com

Ready: quantum-resistant key exchange

Short answer

Yes. As of 2026-11-03, anthropic.com negotiates the hybrid post-quantum key exchange X25519MLKEM768 over TLSv1.3 (Quantum Aether grade A).

GradeA
Key exchangeX25519MLKEM768
Post-quantumyes
TLSTLSv1.3
Hosting networkAnthropic, PBC
Tranco rank#335

From our weekly tracker of the top 10,000 sites, scanned on 2026-11-03 · /adoption

Show your readiness on your site

post-quantum TLS: A

Markdown 
[![Post-quantum TLS grade by Quantum Aether](https://ather-quatum.cloud/badge/anthropic.com.svg)](https://ather-quatum.cloud/?domain=anthropic.com)

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