TCP SYN (p0f)

4:47+17:0:1412:mss*44,1:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-08-26 01:14 · last seen 2026-09-11 16:32 · JSON

Last 7 days (6 observations)

Distinct clients per day (last 30 days, peak 6/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 TTL47+17
Options length0
MSS1412
Window sizemss*44
Window scale1
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
t13d1515h1_8daaf6152771_0a20fe35d3a511
t13d1515h1_8daaf6152771_de4a06bb82e37

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_00000000000012
ge11nn14enus_4a2973d235de_000000000000_0000000000006

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1412_118

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.67 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
BR · Brazil7
PE · Peru4
EC · Ecuador4
AR · Argentina2
CL · Chile1

Network (ASN)

fingerprintco-occurrences
AS27947 · Telconet S.A3
AS265691 · WI-NET TELECOM S.A.C.2
AS27651 · ENTEL CHILE S.A.1
AS12252 · America Movil Peru S.A.C.1
AS22927 · Telefonica de Argentina1
AS28656 · BTT TELECOMUNICACOES S.A.1
AS7738 · V tal1
AS53006 · ALGAR TELECOM S/A1
AS14522 · SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)1
AS28220 · Alares Cabo Servicos de Telecomunicacoes S.A.1