TCP SYN (JA4T)

62720_2-4-8-1-3_8960_11

first seen 2026-07-14 00:48 · last seen 2026-09-16 09:13 · JSON

Last 7 days (168 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

TCP window62720
Option kinds2-4-8-1-3
MSS8960
Window scale11

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
t13d311000_8ae6a2f5ac15_5ac7197df9d21532

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_be0d0b335e46_000000000000_0000000000001532

TCP SYN (p0f)

fingerprintco-occurrences
4:48+16:0:8960:mss*7,11:mss,sok,ts,nop,ws:df,id+:0793
4:50+14:0:8960:mss*7,11:mss,sok,ts,nop,ws:df,id+:0651
4:46+18:0:8960:mss*7,11:mss,sok,ts,nop,ws:df,id+:085
4:45+19:0:8960:mss*7,11:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:8960:mss*7,11:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; SemrushBot/7~bl; +http://www.semrush.com/bot.html)1532

Country

fingerprintco-occurrences
US · United States1532

Network (ASN)

fingerprintco-occurrences
AS209366 · SEMrush CY LTD1532