TCP SYN (p0f)

4:45+19:0:1412:65535,9:mss,sok,nop,nop,nop,ws:df,id+:0

first seen 2026-07-29 16:04 · last seen 2026-07-30 09:43 · JSON

Decomposed attributes

IP version4
Initial TTL45+19
Options length0
MSS1412
Window size65535
Window scale9
Options layoutmss,sok,nop,nop,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
t13d4412h1_fd39b124ee10_58ed7828516f2

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.2

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-1-1-1-3_1412_92

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Microsoft Windows NT 10.0.16299.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 (FTM)1
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.9 Safari/537.361

Country

fingerprintco-occurrences
BD · Bangladesh2

Network (ASN)

fingerprintco-occurrences
AS45245 · Banglalink Digital Communications Ltd2