TCP SYN (JA4T)

35844_2-4-8-1-3_1460_10

first seen 2026-07-01 12:35 · last seen 2026-10-31 15:50 · JSON

Last 7 days (9 observations)

Distinct clients per day (last 30 days, peak 5/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 window35844
Option kinds2-4-8-1-3
MSS1460
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
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.83
t12d610700_8a10cb45a794_4446390ac22463
t13d1313h2_f57a46bbacb6_9249cab70c7723
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, +28 more.The fingerprint page shows the full measured match list. More on the catalog.3

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_4f6f4aad0c1e_000000000000_00000000000063
ge20nn10enus_06e2da52e592_000000000000_00000000000046
ge20nn020000_fb4f949fd323_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.16
ge20nn10enus_e1b5b4fef504_000000000000_00000000000014
ge20nn10enus_dfc386b48ce4_000000000000_00000000000012
ge20nn10enus_f058b30e64ca_000000000000_00000000000011
ge20nr020000_fb4f949fd323_000000000000_0000000000007
ge20nr09*000_954f01cbde2e_000000000000_0000000000002
ge20nn10*000_06e2da52e592_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.84
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p23
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +81 more.The fingerprint page shows the full measured match list. More on the catalog.2

TCP SYN (p0f)

fingerprintco-occurrences
4:43+21:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:049
4:50+14:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:049
4:44+20:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:042
4:42+22:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:021
4:49+15:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:08
4:48+16:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:02
4:51+13:0:1460:35844,10:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)110
Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; https://bytedance.sg.larkoffice.com/docx/K5bxdypulop3IIxrJb0lOjLVgFe)36
Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_2 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Version/7.0 Mobile Safari/537.36 (compatible; Bytespider; https://bytedance.sg.larkoffice.com/docx/K5bxdypulop3IIxrJb0lOjLVgFe)23
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4450.0 Safari/537.36 LarkUrl3

Country

fingerprintco-occurrences
SG · Singapore172

Network (ASN)

fingerprintco-occurrences
AS16509 · Amazon.com, Inc.172

TLS supported groups

fingerprintco-occurrences
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 155.0.8059.40, chrome 156.0.8078.73, chromium 156.0.8078.47, +8 more.The fingerprint page shows the full measured match list. More on the catalog.21
6399,001d,0017,0018,00197