TCP SYN (p0f)

4:49+15:0:1424:mss*44,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-13 14:23 · last seen 2026-07-01 18:56 · JSON

Decomposed attributes

IP version4
Initial TTL49+15
Options length0
MSS1424
Window sizemss*44
Window scale7
Options layoutmss,sok,ts,nop,ws
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
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1712h1_ab0a1bf427ad_8e6e362c5eac1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr030000_0db47b7d240d_000000000000_0000000000001
ge11nn050000_be0d0b335e46_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1424_71

User-Agent

fingerprintco-occurrences
Go-http-client/1.11
python-httpx/0.28.11

Country

fingerprintco-occurrences
US · United States1
JP · Japan1

Network (ASN)

fingerprintco-occurrences
AS132203 · Tencent Building, Kejizhongyi Avenue2