TCP SYN (p0f)

4:49+15:0:1460:mss*29,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-26 07:07 · last seen 2026-08-11 03:03 · JSON

Decomposed attributes

IP version4
Initial TTL49+15
Options length0
MSS1460
Window sizemss*29
Window scale7
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
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog.4
t13d1411h1_cbb2034c60b8_e7c2852226512

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn10ruru_d353d425b0bb_000000000000_0000000000003
ge11nr040000_8391bea91fb6_000000000000_0000000000002
ge20nn11ruru_26e315a7494a_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.4

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_75

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.04
Mozilla/5.02

Country

fingerprintco-occurrences
NL · Netherlands4
ID · Indonesia2

Network (ASN)

fingerprintco-occurrences
AS50053 · VDSka hosting4
AS46042 · Gunadarma University2