first seen 2026-09-12 10:49 · last seen 2026-09-14 17:58 · JSON
Last 7 days (10 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 version
4
Initial TTL
53+11
Options length
0
MSS
8960
Window size
65535
Window scale
6
Options layout
mss,nop,ws,nop,nop,ts,sok,eol+1
Quirks
df,ecn
Payload class
0
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)
fingerprint
co-occurrences
t13d1517h2_8daaf6152771_cb7bf5808d99Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 152.0.7977.64, chrome 152.0.7977.65, +5 more.The fingerprint page shows the full measured match list. More on the catalog.
AS3243· MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
10
Cross-transport links
TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).