TCP SYN (p0f)

6:55+9:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0

first seen 2026-07-29 19:40 · last seen 2026-10-01 14:27 · JSON

Decomposed attributes

IP version6
Initial TTL55+9
Options length0
MSS1440
Window sizemss*45
Window scale10
Options layoutmss,sok,ts,nop,ws
Quirksflow
Payload class0

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.27
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.21
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.14
t13d171000_5b57614c22b0_78e6aca7449b10
t13d181000_e8a523a41297_78e6aca7449b6
t12d150700_0707305c9f76_0f3b2bcde21d5
t13d1513h2_8daaf6152771_eca864cca44a4
t13d1617h2_86a278354501_3e9721a6796e2
t13d1616h2_86a278354501_0c27189014cf Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1514h2_8daaf6152771_43ade6aba3df1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn030000_4ebf34bca547_000000000000_00000000000030
ge11nn030000_58c83775e1a3_000000000000_00000000000016
ge20nr12enus_7f8aecb7bbee_000000000000_00000000000015
ge20nn14enus_e6dae214b9be_000000000000_0000000000009
ge20nr12enus_df25ac57a18f_000000000000_0000000000006
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.3, +14 more.The fingerprint page shows the full measured match list. More on the catalog.5
ge11nn040000_b2e9a2d2ea69_000000000000_0000000000005
ge20nr12enca_1204b4dfdccd_000000000000_0000000000002
ge20nr12engb_54b4638ab28b_000000000000_0000000000001
ge20nr12enus_979a40433f82_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
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, +85 more.The fingerprint page shows the full measured match list. More on the catalog.13
1:65536;2:0;4:6291456;6:262144|15663105|3:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 147.0.7727.15, chromium 145.0.7632.6, +26 more.The fingerprint page shows the full measured match list. More on the catalog.10
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.10
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:220|m,a,s,p7
1:65536;2:0;4:6291456;6:262144|15663105|9:1:0:220|m,a,s,p7
4:16777216|16711681|0|m,p,a,s5
1:65536;2:0;4:6291456;6:262144|15663105|3:1:1:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.128, chrome 150.0.7871.115, chrome 154.0.8037.58, +8 more.The fingerprint page shows the full measured match list. More on the catalog.5
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;4:131072;5:16384|12517377|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 155.0.1, +32 more.The fingerprint page shows the full measured match list. More on the catalog.3
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:256|m,a,s,p3

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_1092

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Linux; Android 15; sdk_gphone64_x86_64 Build/AE3A.240806.043; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/124.0.6367.219 Mobile Safari/537.3612
dev.fingerprint.probe/1 (Linux; U; Android 15; en_US; sdk_gphone64_x86_64; Build/AE3A.240806.043; Cronet/143.0.7445.0)9
Mozilla/5.0 (Linux; Android 16; sdk_gphone64_x86_64 Build/BE2A.250530.026.F3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.137 Mobile Safari/537.369
dev.fingerprint.probe/1 (Linux; U; Android 15; en_US; sdk_gphone64_x86_64; Build/AE3A.240806.043; Cronet/151.0.7922.83)6
dev.fingerprint.probe/1 (Linux; U; Android 15; en_US; sdk_gphone64_x86_64; Build/AE3A.240806.043; Cronet/141.0.7340.3)6
Dart/2.16 (dart:io)6
Mozilla/5.0 (Linux; Android 10; K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.0.0 Mobile Safari/537.366
okhttp/5.5.05
Dart/2.10 (dart:io)5
Dart/3.11 (dart:io)5

Country

fingerprintco-occurrences
US · United States87
CA · Canada5

Network (ASN)

fingerprintco-occurrences
AS132892 · Cloudflare, Inc.86
AS5769 · Videotron Ltee5
AS14956 · RouterHosting LLC1

Cross-transport links

TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).

fingerprintlinked observations
q13d0315h3_55b375c5d22e_78345df32b3a2
q13d0311h3_55b375c5d22e_653d80c3fe9d1
q13d0315h3_55b375c5d22e_dc5437974b471