TCP SYN (p0f)

4:44+20:0:1460:mss*44,6:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-10-23 09:00 · last seen 2026-10-23 09:00 · 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 version4
Initial TTL44+20
Options length0
MSS1460
Window sizemss*44
Window scale6
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
t13i170900_5b57614c22b0_78e6aca7449b2

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn070000_ca40d4d1460e_000000000000_0000000000001
ge11nn050000_889622e8388c_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_62

User-Agent

fingerprintco-occurrences
libredtail-http2

Country

fingerprintco-occurrences
VN · Vietnam2

Network (ASN)

fingerprintco-occurrences
AS150895 · EZ TECHNOLOGY COMPANY LIMITED2

TLS supported groups

fingerprintco-occurrences
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 156.0.8078.48, edge 155.0.4283.62, chrome 156.0.8078.47, +11 more.The fingerprint page shows the full measured match list. More on the catalog.2