HTTP/2 frames (Akamai)

1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,s,p,a

first seen 2026-08-21 07:26 · last seen 2026-08-21 09:25 · 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

SETTINGS{"1": 65536, "2": 0, "3": 1000, "4": 6291456, "6": 262144}
WINDOW_UPDATE15663105
PRIORITY frames1:1:0:256
Pseudo-header orderm,s,p,a

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
t13d1517h2_8daaf6152771_0bf6ec06e1993

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn08enus_1945e0741196_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.4, safari 26.6.2.The fingerprint page shows the full measured match list. More on the catalog.3

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:65535,3:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:1460:1152,0:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_32
1152_2-4-8-1-3_1460_001

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 14_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.153

Country

fingerprintco-occurrences
NL · Netherlands3

Network (ASN)

fingerprintco-occurrences
AS197170 · TechTies Inc.3