TCP SYN (p0f)

4:115+13:0:1160:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0

first seen 2026-07-06 10:12 · last seen 2026-10-26 02:23 · JSON

Last 7 days (3 observations)

Distinct clients per day (last 30 days, peak 8/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version4
Initial TTL115+13
Options length0
MSS1160
Window size65535
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
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.84

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_8391bea91fb6_000000000000_00000000000072
ge11nr040000_8391bea91fb6_000000000000_00000000000012

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-4_1160_884

User-Agent

fingerprintco-occurrences
Go-http-client/1.184

Country

fingerprintco-occurrences
DE · Germany84

Network (ASN)

fingerprintco-occurrences
AS212238 · Datacamp Limited84

TLS supported groups

fingerprintco-occurrences
11ec,11eb,11ed,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog.3