TCP SYN (p0f)

4:108+20:0:1372:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0

first seen 2026-06-19 12:26 · last seen 2026-06-23 06:07 · JSON

Decomposed attributes

IP version4
Initial TTL108+20
Options length0
MSS1372
Window size65535
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+
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
t13d1514h2_8daaf6152771_827b515c4f523

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn14ruru_b627e55c4c56_000000000000_0000000000002
ge20nn14ruru_186438911b7e_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +43 more.The fingerprint page shows the full measured match list. More on the catalog.3

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.363

Country

fingerprintco-occurrences
BY · Belarus3

Network (ASN)

fingerprintco-occurrences
AS12406 · Business Network Ltd3