TCP SYN (p0f)

6:58+6:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0

first seen 2026-10-01 23:02 · last seen 2026-10-16 06:40 · JSON

Distinct clients per day (last 30 days, peak 10/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 version6
Initial TTL58+6
Options length0
MSS1440
Window sizemss*45
Window scale10
Options layoutmss,sok,ts,nop,ws
Quirksflow
Payload class0

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.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d3515h1_8f004308c246_5c2c66f702b057

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_a1c329e38462_000000000000_00000000000054
ge11nn050000_3658ef221638_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.21.4, wget 1.25.0, wget 1.21.3.The fingerprint page shows the full measured match list. More on the catalog.3

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_1057

User-Agent

fingerprintco-occurrences
Mozilla/5.050
Mozilla/5.0 (compatible; Infrawatch/1.0; +https://infrawat.ch/)7

Country

fingerprintco-occurrences
DE · Germany52
NL · Netherlands5

Network (ASN)

fingerprintco-occurrences
AS25369 · Hydra Communications Ltd57

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019,0100,01015