HTTP/2 frames (Akamai)

1:65536;4:131072;5:16384|12517377|3:0:0:201,5:0:0:101,7:0:0:1,9:0:7:1,11:0:3:1,13:0:0:241,15:0:11:22|m,p,a,s

first seen 2026-07-05 13:24 · last seen 2026-10-28 13:30 · JSON

Last 7 days (2 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

SETTINGS{"1": 65536, "4": 131072, "5": 16384}
WINDOW_UPDATE12517377
PRIORITY frames3:0:0:201,5:0:0:101,7:0:0:1,9:0:7:1,11:0:3:1,13:0:0:241,15:0:11:22
Pseudo-header orderm,p,a,s

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
t13d1715h2_5b57614c22b0_3d5424432f577
t13d1713h2_5b57614c22b0_f81080dfc5572

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr09enus_17f45339a253_000000000000_0000000000007
ge20nr10engb_327edc7bd759_000000000000_0000000000002

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:05
4:50+14:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:02
6:57+7:0:1360:65535,13:mss,sok,ts,nop,ws:flow:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_75
65535_2-1-3-1-1-8-4-0-0_1460_62
65535_2-4-8-1-3_1360_132

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Android 10; Mobile; rv:89.0) Gecko/89.0 Firefox/89.03
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:109.0) Gecko/20100101 Firefox/115.02
Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.12
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.362

Country

fingerprintco-occurrences
CN · China5
US · United States2
EE · Estonia2

Network (ASN)

fingerprintco-occurrences
AS4134 · CHINANET BACKBONE5
AS13335 · Cloudflare, Inc.2
AS3249 · Telia Eesti AS2

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019,0100,01016

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).

fingerprintlinked observations
q13d0314h3_55b375c5d22e_2d2a40a255714