TCP SYN (p0f)

6:54+10:0:1440:65535,12:mss,nop,ws,sok,ts:ecn,flow:0

first seen 2026-07-01 14:39 · last seen 2026-07-01 14:39 · JSON

Decomposed attributes

IP version6
Initial TTL54+10
Options length0
MSS1440
Window size65535
Window scale12
Options layoutmss,nop,ws,sok,ts
Quirksecn,flow
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
t13d1513h2_8daaf6152771_eca864cca44a1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.0, go-net/http 1.26.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
4:16777216|16711681|0|m,p,a,s1

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-4-8_1440_121

User-Agent

fingerprintco-occurrences
SpaceCowboys Android RSS Reader / 2.21.1(4025)1

Country

fingerprintco-occurrences
US · United States1

Network (ASN)

fingerprintco-occurrences
AS7018 · AT&T Enterprises, LLC1