TCP SYN (p0f)

4:54+10:0:1460:35844,0:mss,?34,nop,nop:df,id+:0

first seen 2026-09-02 22:19 · last seen 2026-09-08 11:46 · JSON

Distinct clients per day (last 30 days, peak 4/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 TTL54+10
Options length0
MSS1460
Window size35844
Window scale0
Options layoutmss,?34,nop,nop
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_d8a2da3f94cd13

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn14enus_f373e780f670_000000000000_0000000000009
po11nr15enus_09e4ed5d8ed5_000000000000_0000000000002
ge11nr13enus_e965362ed9da_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
35844_2-34-1-1_1460_0013

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.366
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States13

Network (ASN)

fingerprintco-occurrences
AS14618 · Amazon.com, Inc.13