TCP SYN (p0f)

4:39+25:0:1460:65535,0:mss,sok,ts:df,id+:0

first seen 2026-06-12 01:02 · last seen 2026-06-12 01:02 · JSON

Decomposed attributes

IP version4
Initial TTL39+25
Options length0
MSS1460
Window size65535
Window scale0
Options layoutmss,sok,ts
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
t13i1311h2_f57a46bbacb6_ab7e3b40a6771

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn030000_0db47b7d240d_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;5:16384;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.8, go-net/http 1.26.7, +6 more.The fingerprint page shows the full measured match list. More on the catalog.1

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) obsidian/1.8.10 Chrome/132.0.6834.196 Electron/34.2.0 Safari/537.361

Country

fingerprintco-occurrences
SG · Singapore1

Network (ASN)

fingerprintco-occurrences
AS212512 · Detai Prosperous Technologies Limited1