TCP SYN (p0f)

4:50+14:0:1400:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:0

first seen 2026-07-27 10:47 · last seen 2026-08-07 07:46 · JSON

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1400
Window size65535
Window scale6
Options layoutmss,nop,ws,nop,nop,ts,sok,eol+1
Quirksdf
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
t13d2014h2_a09f3c656075_e42f34c56612 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.5, urlsession 6.1.2, +1 more.The fingerprint page shows the full measured match list. More on the catalog.2
t12d3806h1_10ed599f3404_67a080e8974e1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr08zhcn_0a5873f4dd2b_000000000000_0000000000002
ge11nn06enus_a89d28968959_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:2097152;3:100|10485760|0|m,s,p,a2

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-8-4-0-0_1400_63

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 MicroMessenger/8.0.75(0x18004b57) NetType/WIFI Language/zh_CN2
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
CN · China3

Network (ASN)

fingerprintco-occurrences
AS4134 · CHINANET BACKBONE3