TCP SYN (p0f)

4:49+15:0:1440:65535,10:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-23 22:48 · last seen 2026-09-29 07:17 · JSON

Decomposed attributes

IP version4
Initial TTL49+15
Options length0
MSS1440
Window size65535
Window scale10
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
t13d1515h1_8daaf6152771_0a20fe35d3a53
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
ge11nn14enus_4a2973d235de_000000000000_0000000000002
ge11nn13enus_9db22d02e17a_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1440_105

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/84.0.4147.125 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4702.147 Safari/537.361

Country

fingerprintco-occurrences
BD · Bangladesh3
PK · Pakistan2

Network (ASN)

fingerprintco-occurrences
AS142122 · Netzone Computers1
AS137967 · Digicon Telecommunication Ltd1
AS146946 · TS Network1
AS136384 · Optix Pakistan (Pvt.) Limited1
AS58470 · IX Peering for JAZZWORLD PAKISTAN LIMITED and Link Direct International.1