TCP SYN (p0f)

4:41+23:0:1424:25380,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-11 02:32 · last seen 2026-09-15 21:41 · JSON

Last 7 days (3 observations)

Distinct clients per day (last 30 days, peak 2/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 TTL41+23
Options length0
MSS1424
Window size25380
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_e5728521abd430

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn10zhcn_9c0cf7475f83_000000000000_00000000000013
ge11nn08zhcn_bd35aedc6348_000000000000_00000000000010
ge11nr08zhcn_bd35aedc6348_000000000000_0000000000005
ge11nr10zhcn_9c0cf7475f83_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
25380_2-4-8-1-3_1424_715

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.130

Country

fingerprintco-occurrences
TH · Thailand15
KR · South Korea6
SG · Singapore5
JP · Japan2
ID · Indonesia2

Network (ASN)

fingerprintco-occurrences
AS132203 · Tencent Building, Kejizhongyi Avenue30