TCP SYN (p0f)

6:40+24:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0

first seen 2026-06-25 11:25 · last seen 2026-06-29 23:45 · JSON

Decomposed attributes

IP version6
Initial TTL40+24
Options length0
MSS1440
Window sizemss*45
Window scale7
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_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
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.1
t13d3112h1_e8f1e7e78f70_d41ae481755e1
t13d301300_1d37bd780c83_c5cfab342c591
t12d290700_fc2078a0b8c0_8c06664c3ac51

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr030000_0db47b7d240d_000000000000_0000000000001
ge11nn050000_3658ef221638_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.21.4, wget 1.21.3, wget 1.25.0.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn040000_d368c19b6155_000000000000_0000000000001
ge20nn09frfr_a545420ec371_000000000000_0000000000001
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

HTTP/2 frames (Akamai)

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

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_72

User-Agent

fingerprintco-occurrences
Go-http-client/1.11
Mozilla/5.0 (compatible)1
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)1
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 OPR/131.0.0.01

Country

fingerprintco-occurrences
FR · France3
PL · Poland2

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS5