⚛ Quantum Aether
A

Post-quantum TLS readiness

r-project.org

Ready: quantum-resistant key exchange

Short answer

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

GradeA
Key exchangeX25519MLKEM768
Post-quantumyes
TLSTLSv1.3
Hosting networkVienna University of Economics and Business
Tranco rank#5320

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/r-project.org.svg)](https://ather-quatum.cloud/?domain=r-project.org)

Related sites