Observed arrival · 2026-09-29
The Harvest-Proof Index, with its publisher at No. 1
Credibility concern recorded. The source reference remains available for verification and correction.
A public index compares post-quantum TLS support across 51 companies, ranking servers that offer a hybrid key exchange and refuse tested classical handshakes.
- For
- TLS and security teams assessing post-quantum server deployment
- Worth noticing
- The page links probe source, repeated-run files, checksums, timestamp records, and a route for submitting reproducible challenges.
Field notes
The index reports 3,642 server names tested and 2,885 measured, then ranks companies by servers that offer a post-quantum hybrid while refusing three tested classical handshakes. Its page links company results, raw server records, probe source, repeat-run files, checksums, timestamp records, and a public challenge route. Qtonic Quantum Corp publishes the comparison and appears at number one; the supplied extract does not independently validate its measurements.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue