TCP SYN (p0f)

4:43+21:0:1460:mss*29,11:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-09-07 14:02 · last seen 2026-09-21 20:13 · JSON

Decomposed attributes

IP version4
Initial TTL43+21
Options length0
MSS1460
Window sizemss*29
Window scale11
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
t13d4312h1_c7886603b240_b26ce05bbdd61
t13d131300_f57a46bbacb6_fb48f8b98a291

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.1
ge11nn05enus_1837273ddbac_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_112

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/537.361
SofyaBot/1.0 (+https://sofya.co/bot)1

Country

fingerprintco-occurrences
DE · Germany1
AT · Austria1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH1
AS197540 · netcup GmbH1