TCP SYN (p0f)

4:54+10:0:1460:65535,13:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-18 07:24 · last seen 2026-08-06 19:37 · JSON

Decomposed attributes

IP version4
Initial TTL54+10
Options length0
MSS1460
Window size65535
Window scale13
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
t13d1312h2_a44d0ee8b3cc_e381dae6da6b8

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn090000_6c95df8859bf_000000000000_0000000000002
ge20nr15enus_08092a14dd7f_000000000000_0000000000002
ge20nn070000_0bd999d27b1c_000000000000_0000000000001
ge20nn080000_eab49c6106e6_000000000000_0000000000001
ge20nn21enus_3b435d364e98_000000000000_0000000000001
ge20nr14enus_42799ef55aad_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;3:1;4:8388608;5:65536|8323073|0|m,s,a,p8

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_137

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.361
Mozilla/5.0 (compatible; bot/1.0)1
ucp-crawler/0.1 (+https://github.com/huckleberry-inc/ucp-crawler)1

Country

fingerprintco-occurrences
US · United States5
AU · Australia3

Network (ASN)

fingerprintco-occurrences
AS13335 · Cloudflare, Inc.8