TCP SYN (p0f)

4:113+15:0:1424:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-06-19 22:53 · last seen 2026-06-27 00:33 · JSON

Decomposed attributes

IP version4
Initial TTL113+15
Options length0
MSS1424
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_b26ce05bbdd62

HTTP request (JA4H)

fingerprintco-occurrences
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

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.02

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS132203 · Tencent Building, Kejizhongyi Avenue2