TCP SYN (p0f)

4:45+19:0:1460:65535,11:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 15:07 · last seen 2026-10-31 09:50 · JSON

Last 7 days (1 observations)

Decomposed attributes

IP version4
Initial TTL45+19
Options length0
MSS1460
Window size65535
Window scale11
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
t13d591000_a33745022dd6_1f22a2ca17c42
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

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn07enus_71b742b5154a_000000000000_0000000000002
ge20nr030000_ff50983941c1_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_113

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; The Lounge IRC Client; +https://github.com/thelounge/thelounge) facebookexternalhit/1.1 Twitterbot/1.02
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
FI · Finland2
CH · Switzerland1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH2
AS58215 · Omniline Investment s.r.o.1

TLS supported groups

fingerprintco-occurrences
0a0a,001d,0017,00181