TCP SYN (JA4T)

64440_2-1-3-1-1-4_1432_8

first seen 2026-07-03 12:34 · last seen 2026-09-14 03:44 · 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

TCP window64440
Option kinds2-1-3-1-1-4
MSS1432
Window scale8

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
t12d190800_d83cc789557e_7af1ed941c263
t13d1516h2_8daaf6152771_806a8c22fdea Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, chromium 151.0.7922.34, +24 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
po11nn07enus_7d361e250c48_000000000000_0000000000002
po11nn07enin_7d361e250c48_000000000000_0000000000001
ge20nn13enus_0c2c1d640f3e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 151.0.7922.137, chrome 151.0.7922.170, chrome 151.0.7922.108, +23 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +43 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
6:44+20:0:1432:mss*45,8:mss,nop,ws,nop,nop,sok:flow:01
6:43+21:0:1432:mss*45,8:mss,nop,ws,nop,nop,sok:flow:01
6:46+18:0:1432:mss*45,8:mss,nop,ws,nop,nop,sok:flow:01
6:52+12:0:1432:mss*45,8:mss,nop,ws,nop,nop,sok:flow:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.361
WordPress.com; https://wordpress.com1
Mozilla/5.0 (Windows NT 10.0; x86) AppleWebKit/537.36 (KHTML, like Gecko) Firefox/95.0.0.0 Safari/537.361
Jetpack by WordPress.com (Jetpack 13.0; WordPress 6.2)1

Country

fingerprintco-occurrences
BR · Brazil1
IN · India1
VN · Vietnam1
GR · Greece1

Network (ASN)

fingerprintco-occurrences
AS6799 · Ote SA (Hellenic Telecommunications Organisation)1
AS18403 · FPT Telecom Company1
AS18881 · TELEFÔNICA BRASIL S.A1
AS9829 · National Internet Backbone1