TCP SYN (p0f)

4:43+21:0:1460:65535,8:mss,sok,ts,nop,ws:df,id+,ecn:0

first seen 2026-06-18 07:54 · last seen 2026-08-19 07:04 · JSON

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 TTL43+21
Options length0
MSS1460
Window size65535
Window scale8
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+,ecn
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
t12d120700_3bab475705cb_0f3b2bcde21d10
t13d151000_dad3e448d43e_78e6aca7449b2

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn080000_916d4997cb05_000000000000_0000000000003
ge11nn100000_85b7ab1bffb1_000000000000_0000000000003
ge11nn080000_dffb91ef6322_000000000000_0000000000002
ge11nn100000_fafa3d12f3f3_000000000000_0000000000002
ge11nn070000_0fbd822fa489_000000000000_0000000000001
ge11nn090000_9298289b6000_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_88

User-Agent

fingerprintco-occurrences
Twitterbot/1.012

Country

fingerprintco-occurrences
US · United States12

Network (ASN)

fingerprintco-occurrences
AS13414 · Twitter Inc.12