TCP SYN (p0f)

4:53+11:0:1460:35844,0:mss,?254:df,id+:0

first seen 2026-09-10 03:06 · last seen 2026-09-10 21:49 · JSON

Last 7 days (2 observations)

Distinct clients per day (last 30 days, peak 2/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 TTL53+11
Options length0
MSS1460
Window size35844
Window scale0
Options layoutmss,?254
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
t13d1516h1_8daaf6152771_d8a2da3f94cd2

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn12enus_8eff6c7bee97_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
35844_2-254_1460_002

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.362

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS14618 · Amazon.com, Inc.2