TCP SYN (p0f)

4:50+14:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-11 11:27 · last seen 2026-08-28 02:01 · JSON

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 TTL50+14
Options length0
MSS1460
Window sizemss*20
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
t13i170900_5b57614c22b0_78e6aca7449b2
t12d130600_2d7513195f68_e51b7354d87f2
t13i250900_b78ed14e2fd0_e7c2852226511

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr040000_e1d2031bdfea_000000000000_0000000000002
po11nn050000_b4ba55311b46_000000000000_0000000000001
ge11nn070000_d0d63ed74832_000000000000_0000000000001
ge11nn050000_c71bbc472f37_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
29200_2-4-8-1-3_1460_74

User-Agent

fingerprintco-occurrences
libredtail-http2
Mozilla/5.0 (Linux; Android 11; M2004J15SC) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Mobile Safari/537.362
Mozilla/5.0 (SS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
LY · Libya2
US · United States2
BG · Bulgaria1

Network (ASN)

fingerprintco-occurrences
AS37284 · Aljeel Aljadeed For Technology2
AS45102 · Alibaba (US) Technology Co., Ltd.2
AS50360 · Tamatiya EOOD1