TCP SYN (p0f)

4:55+9:0:1276:mss*34,12:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 17:50 · last seen 2026-07-01 17:50 · JSON

Decomposed attributes

IP version	`4`
Initial TTL	`55+9`
Options length	`0`
MSS	`1276`
Window size	`mss*34`
Window scale	`12`
Options layout	`mss,sok,ts,nop,ws`
Quirks	`df,id+`
Payload class	`0`

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)

fingerprint	co-occurrences
`t13d1713h1_ab0a1bf427ad_8537cf56674e` Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.32.3, python-requests 2.33.1.The fingerprint page shows the full measured match list. More on the catalog.	1

HTTP request (JA4H)

fingerprint	co-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.	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`43384_2-4-8-1-3_1276_12`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36`	1

Country

fingerprint	co-occurrences
`US` · United States	1

Network (ASN)

fingerprint	co-occurrences
`AS14618` · Amazon.com, Inc.	1