HTTP/2 frames (Akamai)

2:0;3:100;4:2097152;8:1;9:1|10420225|1:0:0:256|m,s,a,p

first seen 2026-06-12 00:19 · last seen 2026-09-11 07:56 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 2/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{"2": 0, "3": 100, "4": 2097152, "8": 1, "9": 1}
WINDOW_UPDATE10420225
PRIORITY frames1:0:0:256
Pseudo-header orderm,s,a,p

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
t13d2014h2_a09f3c656075_e42f34c56612 Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.5, urlsession 6.1.2, +1 more.The fingerprint page shows the full measured match list. More on the catalog.13

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.9
ge20nn09enus_d96ac90dfa13_000000000000_0000000000002
ge20nr09enus_d96ac90dfa13_000000000000_0000000000001
ge20nn08ja00_b65a39d4559c_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
6:47+17:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:03
4:55+9:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:id-,ecn:02
6:55+9:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02
4:53+11:0:1420:mss*46,13:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1440:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1460:32768,10:mss,nop,ws,sok,ts::01
4:51+13:0:1460:32768,10:mss,nop,ws,sok,ts::01
4:56+8:0:1460:mss*44,13:mss,sok,ts,nop,ws:df,id+:01
4:46+18:0:1360:65535,6:mss,nop,ws,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,sok,eol+1:id-:01

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_75
32768_2-1-3-4-8_1460_102
64240_2-4-8-1-3_1440_101
64240_2-4-8-1-3_1460_131
65535_2-1-3-1-1-1-1-1-1-1-1-1-1-1-1-4-0-0_1360_61

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0 Safari/605.1.1510
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Safari/605.1.152
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Safari/605.1.151

Country

fingerprintco-occurrences
US · United States5
FI · Finland3
NL · Netherlands2
SE · Sweden2
CN · China1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH3
AS215125 · Church of Cyberology2
AS21554 · Wisconsin CyberLynk Network, Inc.2
AS214379 · South Park Networks LLC2
AS396982 · Google LLC1
AS8075 · Microsoft Corporation1
AS14061 · DigitalOcean, LLC1
AS4134 · CHINANET BACKBONE1

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
q13d0311h3_55b375c5d22e_f2a83c8e78ae1