A
Post-quantum TLS readiness
cwi.nl
Ready: quantum-resistant key exchange
Short answer
Yes. As of 2026-11-03, cwi.nl negotiates the hybrid post-quantum key exchange X25519MLKEM768 over TLSv1.3 (Quantum Aether grade A).
| Grade | A |
|---|---|
| Key exchange | X25519MLKEM768 |
| Post-quantum | yes |
| TLS | TLSv1.3 |
| Hosting network | Stichting Centrum voor Wiskunde en Informatica |
| Tranco rank | #4191 |
| Country | 🇳🇱 Netherlands: #16/26 (51.4%) |
From our weekly tracker of the top 10,000 sites, scanned on 2026-11-03 · /adoption
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Markdown
[](https://ather-quatum.cloud/?domain=cwi.nl)