TCP SYN (p0f)

4:50+14:0:1460:mss*44,7:mss,nop,nop,ts,nop,ws:df,id+:0

first seen 2026-06-21 05:46 · last seen 2026-08-03 20:12 · JSON

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1460
Window sizemss*44
Window scale7
Options layoutmss,nop,nop,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
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.4
t13d131100_f57a46bbacb6_e5728521abd41

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr07enus_b23b8373b424_000000000000_0000000000004
ge11nr06enus_c8423ac5074c_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-1-8-1-3_1460_74

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 17_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Mobile/15E148 Safari/6043
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/1151
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Safari/605.1.11

Country

fingerprintco-occurrences
SE · Sweden5

Network (ASN)

fingerprintco-occurrences
AS51747 · Internet Vikings International AB5