TCP SYN (p0f)

4:45+19:0:1440:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:0

first seen 2026-07-01 16:39 · last seen 2026-07-01 16:39 · JSON

Decomposed attributes

IP version4
Initial TTL45+19
Options length0
MSS1440
Window size65535
Window scale6
Options layoutmss,nop,ws,nop,nop,ts,sok,eol+1
Quirksdf,ecn
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
t13d5911h1_a33745022dd6_1f22a2ca17c4 Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 23.11.1.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn07*000_131b6413da1e_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-8-4-0-0_1440_61

User-Agent

fingerprintco-occurrences
founderfeed/0.11

Country

fingerprintco-occurrences
IN · India1

Network (ASN)

fingerprintco-occurrences
AS24309 · Atria Convergence Technologies Pvt. Ltd. Broadband Internet Service Provider INDIA1