TCP SYN (JA4T)

29200_2-1-1-4-1-3_1460_7

first seen 2026-08-03 19:18 · last seen 2026-09-03 13:41 · JSON

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 window29200
Option kinds2-1-1-4-1-3
MSS1460
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
t12d300500_26d8f6c067ce_3800f04fc87b3
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.2
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.5.0, php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_32287c24fa5b_000000000000_0000000000003
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr16svse_94fdc06e0694_000000000000_0000000000001
ge20nn16svse_94fdc06e0694_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.2
3:100;4:10485760;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1460:mss*20,7:mss,nop,nop,sok,nop,ws:df,id+:05
4:51+13:0:1460:mss*20,7:mss,nop,nop,sok,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
curl/7.29.03
Mozilla/5.0 (Linux; Android 13; Pixel 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.362
curl/8.5.01

Country

fingerprintco-occurrences
CN · China3
CL · Chile2
US · United States1

Network (ASN)

fingerprintco-occurrences
AS4134 · CHINANET BACKBONE3
AS27651 · ENTEL CHILE S.A.2
AS7922 · Comcast Cable Communications, LLC1