TCP SYN (JA4T)

64860_2-4-8-1-3_1410_10

first seen 2026-07-01 14:33 · last seen 2026-07-12 00:58 · JSON

Decomposed attributes

TCP window64860
Option kinds2-4-8-1-3
MSS1410
Window scale10

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
t13d3112h1_e8f1e7e78f70_6bebaf5329ac1
t13d1011h1_61a7ad8aa9b6_f9531d9725131
t13d1011h1_61a7ad8aa9b6_3fcd1a44f3e31
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d5212h1_b262b3658495_8e6e362c5eac Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 24.19.0, node-fetch 22.23.1, node-fetch 24.21.0, +6 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_341eb0d8946c_000000000000_0000000000002
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn07*000_2f91038604b7_000000000000_0000000000001
ge20nn10enus_f7ad313dcc59_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, +43 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1410:mss*46,10:mss,sok,ts,nop,ws:df,id+:02
4:52+12:0:1410:mss*46,10:mss,sok,ts,nop,ws:df,id+:01
4:49+15:0:1410:mss*46,10:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1410:mss*46,10:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.361
SoftNews/0.1 (+https://github.com/softnews)1
jp_curate-archiver/0.11
Tiny Tiny RSS/25.02-169ff6de (https://tt-rss.org/)1

Country

fingerprintco-occurrences
DE · Germany3
US · United States1
BE · Belgium1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH2
AS3209 · Vodafone GmbH1
AS6848 · Telenet BV1
AS394056 · BIF IV1