TCP SYN (p0f)

4:108+20:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 14:54 · last seen 2026-09-13 15:37 · JSON

Last 7 days (1 observations)

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 TTL108+20
Options length0
MSS1460
Window size62727
Window scale7
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
t13d091000_4bbc3963d85c_b6c21844afd35
t13d1314h1_d8d503717f6d_82bceb9efa8b2
t13d4413h1_4a0235c0406f_412e5362642e1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn060000_27a7ddf6354d_000000000000_0000000000005
ge11nn060000_0ef57606c05a_000000000000_0000000000002
he11nn07*000_131b6413da1e_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
62727_2-4-8-1-3_1460_78

User-Agent

fingerprintco-occurrences
ReactorNetty/1.3.65
RSSPoller/1.01
python-requests/2.32.41
tesign-radar/0.1 (+https://tesign.com; phase0 research crawler)1

Country

fingerprintco-occurrences
US · United States5
IN · India2
KR · South Korea1

Network (ASN)

fingerprintco-occurrences
AS14618 · Amazon.com, Inc.5
AS16509 · Amazon.com, Inc.3