TCP SYN (JA4T)

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

first seen 2026-08-03 19:18 · last seen 2026-10-30 16:57 · 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 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
t13d4312h1_c7886603b240_b26ce05bbdd63
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
t13i170900_5b57614c22b0_78e6aca7449b2
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
t13d2013h1_2b729b4bf6f3_e24568c0d4401
t13d1518h2_8daaf6152771_4980c97edce01

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.3
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 8.13.0, +11 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0, curl 7.88.1, curl 8.21.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr13enus_0c2c1d640f3e_000000000000_0000000000001
ge11nn070000_d0d63ed74832_000000000000_0000000000001
ge11nn050000_c71bbc472f37_000000000000_0000000000001
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, +57 more.The fingerprint page shows the full measured match list. More on the catalog.3
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+:02
4:49+15:0:1460:mss*20,7:mss,nop,nop,sok,nop,ws:df,id+:02
4:52+12:0:1460:mss*20,7:mss,nop,nop,sok,nop,ws:df,id+:02
4:55+9:0:1460:mss*20,7:mss,nop,nop,sok,nop,ws:df,id+:01
4:47+17:0:1460:mss*20,7:mss,nop,nop,sok,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
curl/7.29.03
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.362
libredtail-http2
Mozilla/5.0 (Linux; Android 13; Pixel 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.361
curl/8.5.01
curl/8.21.01
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States3
CN · China3
SG · Singapore2
CL · Chile2
GB · United Kingdom1
BE · Belgium1
CI · Côte d’Ivoire1

Network (ASN)

fingerprintco-occurrences
AS4134 · CHINANET BACKBONE3
AS27651 · ENTEL CHILE S.A.2
AS26496 · GoDaddy.com, LLC2
AS22773 · Cox Communications Inc.1
AS7922 · Comcast Cable Communications, LLC1
AS6848 · Telenet BV1
AS13285 · TalkTalk Communications Limited1
AS29571 · Orange Côte d'Ivoire1
AS15011 · Jaguar Communications1

TLS supported groups

fingerprintco-occurrences
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog.2