TCP SYN (p0f)

6:232+23:0:1340:mss*6,8:mss,nop,ws,nop,nop,sok:flow:0

first seen 2026-10-17 13:13 · last seen 2026-10-17 13:13 · JSON

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version6
Initial TTL232+23
Options length0
MSS1340
Window sizemss*6
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksflow
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
t12d190800_d83cc789557e_7af1ed941c261

HTTP request (JA4H)

fingerprintco-occurrences
po11nn07enus_7d361e250c48_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
8640_2-1-3-1-1-4_1340_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Linux; Android 10; arm64) AppleWebKit/537.36 (KHTML, like Gecko) Opera/70.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
IN · India1

Network (ASN)

fingerprintco-occurrences
AS38266 · Vodafone Idea Ltd1

TLS supported groups

fingerprintco-occurrences
001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.11.27, winhttp 10.0.20348.1, +2 more.The fingerprint page shows the full measured match list. More on the catalog.1