first seen 2026-09-22 09:31 · last seen 2026-10-16 18:25 · JSON
Distinct clients per day (last 30 days, peak 1/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
IP version
4
Initial TTL
47+17
Options length
0
MSS
1240
Window size
65535
Window scale
6
Options layout
mss,nop,ws,nop,nop,ts,sok,eol+1
Quirks
df,ecn
Payload class
0
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.
001d,0017,0018,0019Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.