TCP SYN (p0f)

4:111+17:0:1300:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-09-13 04:56 · last seen 2026-09-13 04:56 · JSON

Decomposed attributes

IP version4
Initial TTL111+17
Options length0
MSS1300
Window sizemss*44
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t13d1911h2_9dc949149365_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr020000_b89ce445e0b3_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1300_81

User-Agent

fingerprintco-occurrences
Go-http-client/2.01

Country

fingerprintco-occurrences
ID · Indonesia1

Network (ASN)

fingerprintco-occurrences
AS139952 · PT Trisari Data Indonusa1