TCP SYN (p0f)

4:49+15:0:1412:65535,8:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-19 17:12 · last seen 2026-09-17 08:05 · JSON

Last 7 days (1 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 TTL49+15
Options length0
MSS1412
Window size65535
Window scale8
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
t13d4412h1_fd39b124ee10_58ed7828516f71
t13d1515h1_8daaf6152771_0a20fe35d3a518
t13d1515h1_8daaf6152771_de4a06bb82e317
t13d1516h1_8daaf6152771_1a63afa7c4781

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.71
ge11nn13enus_9db22d02e17a_000000000000_00000000000025
ge11nn14enus_4a2973d235de_000000000000_00000000000011

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1412_8107

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.366
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.365
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.364
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.364
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.364
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.362

Country

fingerprintco-occurrences
PK · Pakistan40
MX · Mexico13
BR · Brazil7
ZA · South Africa5
DZ · Algeria5
NP · Nepal5
VE · Venezuela5
AR · Argentina4
MU · Mauritius3
PY · Paraguay2

Network (ASN)

fingerprintco-occurrences
AS136525 · Wancom (Pvt) Ltd.12
AS8151 · Uninet S.A. de C.V.6
AS36947 · Telecom Algeria5
AS11664 · Techtel LMDS Comunicaciones Interactivas S.A.5
AS5713 · Telkom SA Ltd.4
AS11562 · Net Uno, C.A.4
AS17072 · TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. DE C.V.3
AS59257 · CMPak Limited3
AS132165 · Connect Communications3
AS23889 · Mauritius Telecom Ltd3