TCP SYN (p0f)

4:117+11:0:1460:62720,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-10-08 14:55 · last seen 2026-10-25 19:31 · 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 TTL117+11
Options length0
MSS1460
Window size62720
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
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
t13d1813h1_85036bcba153_d339722ba4af3

HTTP request (JA4H)

fingerprintco-occurrences
po11nn060000_d8e0803a0d25_000000000000_0000000000003

TCP SYN (JA4T)

fingerprintco-occurrences
62720_2-1-3-1-1-4_1460_83

User-Agent

fingerprintco-occurrences
cve-2026-63030/1.03

Country

fingerprintco-occurrences
SG · Singapore3

Network (ASN)

fingerprintco-occurrences
AS31898 · Oracle Corporation3

TLS supported groups

fingerprintco-occurrences
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog.1