first seen 2026-08-22 13:58 · last seen 2026-08-22 15:06 · JSON
Distinct clients per day (last 30 days, peak 2/day)
Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.
Decomposed attributes
TCP window
65535
Option kinds
2-1-3-1-1-8-4-0-0
MSS
1312
Window scale
6
Co-observed signals
Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.
2:0;4:2097152;5:16384;6:16384|5177345|0|m,s,a,pMatch?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.13.4, rust-reqwest 0.12.28, rust-reqwest 0.13.5, +3 more.The fingerprint page shows the full measured match list. More on the catalog.