first seen 2026-06-20 06:46 · last seen 2026-09-14 01:09 · JSON
Last 7 days (4 observations)
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
IP version
4
Initial TTL
47+17
Options length
0
MSS
1460
Window size
65535
Window scale
14
Options layout
mss,sok,ts,nop,ws
Quirks
df,id+,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.
3:100;4:65536;2:0|1048510465|0|m,s,a,pMatch?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.