TCP SYN (p0f)

6:46+18:0:1440:mss*23,7:mss,sok,ts,nop,ws:flow:0

first seen 2026-09-18 02:29 · last seen 2026-09-18 02:29 · JSON

Decomposed attributes

IP version6
Initial TTL46+18
Options length0
MSS1440
Window sizemss*23
Window scale7
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
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr05zhcn_f3bb7aa45ec4_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
33120_2-4-8-1-3_1440_71

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.01

Country

fingerprintco-occurrences
CN · China1

Network (ASN)

fingerprintco-occurrences
AS37963 · Hangzhou Alibaba Advertising Co.,Ltd.1