HTTP/2 frames (Akamai)

1:65536;3:1000;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p

first seen 2026-06-11 23:07 · last seen 2026-10-26 20:53 · 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, "3": 1000, "4": 6291456, "6": 262144}
WINDOW_UPDATE15663105
PRIORITY frames1:1:0:220
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_e5627efa2ab19
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, +28 more.The fingerprint page shows the full measured match list. More on the catalog.4
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.3

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr12enus_fb66efd2683b_000000000000_0000000000004
ge20nr08enus_16d31f2f9221_000000000000_0000000000004
ge20nr12enus_54b4638ab28b_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +61 more.The fingerprint page shows the full measured match list. More on the catalog.2
ge20nr12enin_54b4638ab28b_000000000000_0000000000002
ge20nr12trtr_54b4638ab28b_000000000000_0000000000002
ge20nn010000_379fadc6c8b7_000000000000_0000000000001
ge20nr12zhcn_54b4638ab28b_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:04
4:47+17:0:1380:mss*47,7:mss,sok,ts,nop,ws:df,id+:02
4:50+14:0:1380:mss*47,7:mss,sok,ts,nop,ws:df,id+:02
6:50+14:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02
6:48+16:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:02
6:41+23:0:1400:65535,9:mss,sok,ts,nop,ws:flow:02
4:49+15:0:1460:mss*44,11:mss,sok,ts,nop,ws:df,id+:01
4:108+20:0:1460:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_74
65535_2-4-8-1-3_1400_92
64240_2-4-8-1-3_1460_111
65535_2-1-3-1-1-4_1460_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/97.0.4691.0 Safari/537.364
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.4333.269 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.4779.120 Safari/537.362
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Mobile Safari/537.36 OPR/100.0.0.02
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Mobile Safari/537.36 OPR/103.0.0.02
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Mobile Safari/537.36 OPR/103.0.0.02
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Mobile Safari/537.36 OPR/94.0.0.01

Country

fingerprintco-occurrences
US · United States4
IE · Ireland4
NL · Netherlands2
UA · Ukraine2
LK · Sri Lanka2
KR · South Korea1
ID · Indonesia1

Network (ASN)

fingerprintco-occurrences
AS16509 · Amazon.com, Inc.4
AS205016 · HERN Labs AB4
AS53667 · FranTech Solutions2
AS202422 · G-Core Labs S.A.2
AS18001 · Dialog Axiata PLC.2
AS45102 · Alibaba (US) Technology Co., Ltd.1
AS17858 · LG POWERCOMM1

TLS supported groups

fingerprintco-occurrences
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 156.0.8078.48, edge 155.0.4283.62, chrome 156.0.8078.47, +11 more.The fingerprint page shows the full measured match list. More on the catalog.2

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_653d80c3fe9d2