TCP SYN (p0f)

4:239+16:0:1400:mss*44,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 15:51 · last seen 2026-09-05 06:52 · JSON

Decomposed attributes

IP version4
Initial TTL239+16
Options length0
MSS1400
Window sizemss*44
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
t13d3112h1_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.2.0, php-guzzle 8.1.0, php-guzzle 8.3.1, +12 more.The fingerprint page shows the full measured match list. More on the catalog.2
t13d1515h1_8daaf6152771_0a20fe35d3a51
t13d4412h1_fd39b124ee10_58ed7828516f1

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
he11nn050000_b223a0ebb0b5_000000000000_0000000000001
ge11nn14enus_4a2973d235de_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1400_74

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.361
python-requests/2.34.21
InfomateBot/1.0 (+https://infomate.club)1
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.361

Country

fingerprintco-occurrences
LT · Lithuania3
IQ · Iraq1

Network (ASN)

fingerprintco-occurrences
AS8764 · Telia Lietuva, AB3
AS199739 · Earthlink Telecommunications Equipment Trading & Services DMCC1