TCP SYN (p0f)

4:109+19:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-06-16 19:28 · last seen 2026-09-11 09:37 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 1/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 TTL109+19
Options length0
MSS1460
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
t13d3112h1_e8f1e7e78f70_24695f2957a72
t13d3112h1_e8f1e7e78f70_8d633dac71241
t13d191000_9dc949149365_e7c2852226511

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn06zhcn_90b9989cdd5a_000000000000_0000000000002
ge11nn040000_608e01151bf4_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn010000_4a823118b9ba_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1460_83

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Linux; U; Android 12; zh-Hans-CN; JAD-AL50 Build/HUAWEIJAD-AL50) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/100.0.4896.58 Quark/7.6.5.720 Mobile Safari/537.362
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.01

Country

fingerprintco-occurrences
CN · China2
DE · Germany1
HK · Hong Kong SAR China1

Network (ASN)

fingerprintco-occurrences
AS37963 · Hangzhou Alibaba Advertising Co.,Ltd.2
AS153656 · OWGELS INTERNATIONAL CO., LIMITED1
AS401626 · Netiface America, Inc.1