TCP SYN (p0f)

4:46+18:0:1460:mss*44,9:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-23 11:50 · last seen 2026-09-11 09:58 · 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

IP version4
Initial TTL46+18
Options length0
MSS1460
Window sizemss*44
Window scale9
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+
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
t13d131100_f57a46bbacb6_e5728521abd44
t13i1811h1_85036bcba153_d41ae481755e1
t13d4313h1_c7886603b240_d339722ba4af1
t13d751200_479067518aa3_d339722ba4af1
t13d0810h2_4ea11b35868a_5603904660151
t13d0910h2_5d2cd9e8d18a_5603904660151
t13d1510h2_8daaf6152771_5603904660151
t13d1011h2_659863c202c0_9ced094328c91
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.1
t13d1516h2_8daaf6152771_e5627efa2ab11

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn04enus_989c7cc05c9b_000000000000_0000000000004
ge11nr07enus_b23b8373b424_000000000000_0000000000004
ge20nn12enus_60f823d07c94_000000000000_0000000000002
ge11nn040000_88d30a62b7ad_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.25.0.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn06enus_cc12b3cde403_000000000000_0000000000001
ge11nn050000_212a08913770_000000000000_0000000000001
ge20nn13ruru_0c2c1d640f3e_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p4
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
1:65536;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p1

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_913

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.361
Mozilla/5.0 (iPhone; CPU iPhone OS 17_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Mobile/15E148 Safari/6041
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 WebPulse/1.0 (+https://wpnews.pro/about)1
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/1151
Mozilla/5.0 (Android 14; Mobile; rv:123.0) Gecko/123.0 Firefox/1231
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.31
WhatWeb/0.5.51

Country

fingerprintco-occurrences
NO · Norway6
SE · Sweden4
DE · Germany2
CN · China1
FI · Finland1

Network (ASN)

fingerprintco-occurrences
AS56655 · Gigahost AS6
AS208137 · Feo Prest SRL1
AS24940 · Hetzner Online GmbH1
AS4134 · CHINANET BACKBONE1
AS42708 · Glesys AB1
AS51747 · Internet Vikings International AB1
AS12552 · GlobalConnect AB1
AS16312 · Internet Vikings International AB1
AS51765 · Oy Creanova Hosting Solutions Ltd.1