HTTP/2 frames (Akamai)

1:65536;2:0;4:6291456;6:262144|15663105|3:1:1:220|m,a,s,p

first seen 2026-06-29 23:30 · last seen 2026-09-12 10:49 · 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

SETTINGS{"1": 65536, "2": 0, "4": 6291456, "6": 262144}
WINDOW_UPDATE15663105
PRIORITY frames3:1:1:220
Pseudo-header orderm,a,s,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
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog.16
t13d1516h2_8daaf6152771_806a8c22fdea Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, chromium 151.0.7922.34, +24 more.The fingerprint page shows the full measured match list. More on the catalog.11
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?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.1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr12enus_54b4638ab28b_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, edge 151.0.4129.93, +36 more.The fingerprint page shows the full measured match list. More on the catalog.12
ge20nr12dede_54b4638ab28b_000000000000_0000000000005
ge20nr12engb_54b4638ab28b_000000000000_0000000000003
ge20nr18enus_847f5aa0f578_000000000000_0000000000001
ge20nr14en00_a482706b3270_000000000000_0000000000001
ge20nr110000_65ce3e7a57b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 148.0.7778.96, chromium 147.0.7727.15, +12 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr14enus_4600588ae5ca_000000000000_0000000000001
ge20nr12zhcn_54b4638ab28b_000000000000_0000000000001
ge20nr13ruru_5907f7c6644a_000000000000_0000000000001
ge20nr13zhcn_b3e540f310f0_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:115+13:0:1460:mss*44,9:mss,nop,nop,sok,nop,ws:df,id+:05
4:114+14:0:1460:mss*44,9:mss,nop,nop,sok,nop,ws:df,id+:04
4:55+9:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
6:232+23:0:1440:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:ecn,flow:02
4:48+16:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:02
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:46+18:0:1440:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:110+18:0:1460:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:112+16:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:50+14:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-1-4-1-3_1460_99
65535_2-1-3-1-1-8-4-0-0_1460_63
64240_2-4-8-1-3_1460_102
65535_2-1-3-1-1-8-4-0-0_1440_62
64240_2-4-8-1-3_1460_71
65535_2-1-3-1-1-4_1460_81
64240_2-1-3-1-1-4_1440_81
42340_2-4-8-1-3_1460_111
64240_2-4-8-1-3_1440_101
64240_2-4-8-1-3_1280_101

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.369
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.364
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.362
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.361
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Mobile Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.7339.0 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
SG · Singapore10
DE · Germany5
US · United States4
AU · Australia3
CN · China2
NL · Netherlands1
IN · India1
PT · Portugal1
MA · Morocco1

Network (ASN)

fingerprintco-occurrences
AS213476 · Litlink UAB9
AS6805 · Telefonica Germany GmbH & Co.OHG3
AS38195 · Superloop2
AS8075 · Microsoft Corporation2
AS50324 · Campus, Hofnetz & Events GmbH2
AS4134 · CHINANET BACKBONE1
AS4837 · CHINA UNICOM China169 Backbone1
AS7922 · Comcast Cable Communications, LLC1
AS7545 · TPG Telecom Limited1
AS38136 · Akari Networks1

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_653d80c3fe9d10
q13d0312h3_55b375c5d22e_178839b6cec11