B
Post-quantum TLS readiness
poznan.pl
Secure today, exposed to harvest-now-decrypt-later
Short answer
As of 2026-11-09, Quantum Aether could not determine whether poznan.pl negotiates post-quantum key exchange: the server or its firewall rejected our raw TLS probe.
| Grade | B |
|---|---|
| Key exchange | secp256r1 |
| Post-quantum | undetermined (probe blocked, rescan) |
| TLS | TLSv1.3 |
| Hosting network | POZMAN Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center |
| Tranco rank | #7759 |
| Country | 🇵🇱 Poland: #16/24 (48.0%) |
From our weekly tracker of the top 10,000 sites, scanned on 2026-11-09 · /adoption
Weekly history
| Week | Grade | Key exchange | Post-quantum |
|---|---|---|---|
| 2026-W46 | B | secp256r1 | undetermined |
| 2026-W45 | B | secp256r1 | no |
Show your readiness on your site
Markdown
[](https://ather-quantum.com/verify/poznan.pl)