TCP SYN (p0f)

4:50+14:0:1460:65535,13:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 16:01 · last seen 2026-09-09 13:35 · 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 TTL50+14
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_e381dae6da6b3

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn11enus_ead18a04cd27_000000000000_0000000000001
ge20nn100000_806fbb41f745_000000000000_0000000000001
ge20nn090000_6c95df8859bf_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;3:1;4:8388608;5:65536|8323073|0|m,s,a,p3

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_133

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; UltronRender/1.0; +https://51ultron.com/bot)1
Mozilla/5.0 NeighborhoodTreasureBot/1.0 (+public-discovery)1
Mozilla/5.0 (compatible; HNBot/1.0)1

Country

fingerprintco-occurrences
US · United States2
FR · France1

Network (ASN)

fingerprintco-occurrences
AS13335 · Cloudflare, Inc.3