TCP SYN (p0f)

4:107+21:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-06-13 20:01 · last seen 2026-08-11 11:44 · JSON

Decomposed attributes

IP version4
Initial TTL107+21
Options length0
MSS1460
Window sizemss*44
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t13d1812h1_85036bcba153_b26ce05bbdd63
t13d1712h1_ab0a1bf427ad_882d495ac3812
t13d181100_85036bcba153_d41ae481755e1
t13d1813h1_85036bcba153_d339722ba4af1

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.3
ge11nn050000_2d30dc89d981_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn040000_608e01151bf4_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nn040000_5b1e8b5f4d2d_000000000000_0000000000001
po11nn060000_d8e0803a0d25_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1460_85

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.361
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.01
Python-urllib/3.121
wp2shell1

Country

fingerprintco-occurrences
DE · Germany4
LT · Lithuania2
HK · Hong Kong SAR China1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH3
AS16276 · OVH SAS1
AS215930 · CIPHER OPERATIONS DOO BEOGRAD - NOVI BEOGRAD1
AS45753 · Netsec Limited1
AS209605 · UAB Host Baltic1