TCP SYN (JA4T)

24320_2-4-8-1-3_1220_7

first seen 2026-06-29 23:13 · last seen 2026-08-31 21:05 · JSON

Decomposed attributes

TCP window24320
Option kinds2-4-8-1-3
MSS1220
Window scale7

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
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog.13
t13d4312h1_c7886603b240_b26ce05bbdd68
t13d3614h1_bcee18a5b459_5ae85263eb3b3
t13d121100_a538d02d76d5_f6eeaf393d2e2
t13d5212h1_b262b3658495_8e6e362c5eac Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 24.21.0, node-fetch 24.19.0, node-fetch 22.23.1, +9 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d3613h1_bcee18a5b459_ecd0401ec68b1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr100000_3a59a3b24d6e_000000000000_0000000000009
ge11nn060000_133cb2a8d257_000000000000_0000000000008
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, +39 more.The fingerprint page shows the full measured match list. More on the catalog.4
ge11nn06enus_21ea1759749c_000000000000_0000000000003
ge11nn020000_70500bd9c457_000000000000_0000000000002
ge11nn10enus_9aacc60af601_000000000000_0000000000001
he11nn050000_27c3a796f72e_000000000000_0000000000001

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, +60 more.The fingerprint page shows the full measured match list. More on the catalog.4
1:65536;2:0;4:6291456;6:262144|15663105|5:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 133.0.6943.16, chrome 156.0.8078.48, chrome 150.0.7871.128, +3 more.The fingerprint page shows the full measured match list. More on the catalog.3
1:65536;2:0;4:6291456;6:262144|15663105|9:1:0:220|m,a,s,p3
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:220|m,a,s,p2
1:65536;2:0;4:6291456;6:262144|15663105|7:1:5:220|m,a,s,p1

TCP SYN (p0f)

fingerprintco-occurrences
6:44+20:0:1220:mtu*19,7:mss,sok,ts,nop,ws::07
6:45+19:0:1220:mtu*19,7:mss,sok,ts,nop,ws::04
6:43+21:0:1220:mtu*19,7:mss,sok,ts,nop,ws::04
6:42+22:0:1220:mtu*19,7:mss,sok,ts,nop,ws::03
6:38+26:0:1220:mtu*19,7:mss,sok,ts,nop,ws::03
6:36+28:0:1220:mtu*19,7:mss,sok,ts,nop,ws::02
6:37+27:0:1220:mtu*19,7:mss,sok,ts,nop,ws::02
6:46+18:0:1220:mtu*19,7:mss,sok,ts,nop,ws::01
6:47+17:0:1220:mtu*19,7:mss,sok,ts,nop,ws::01
6:35+29:0:1220:mtu*19,7:mss,sok,ts,nop,ws::01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.6533.0 Safari/537.369
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.368
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.364
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.361
FirmableBot/1.0 (domain-check)1

Country

fingerprintco-occurrences
US · United States20
IN · India8

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC28