HTTP/2 frames (Akamai)

1:65536;3:1000;4:6291456;5:16384;6:262144|15663105|0|m,a,s,p

first seen 2026-07-18 08:00 · last seen 2026-09-08 13:37 · JSON

Decomposed attributes

SETTINGS{"1": 65536, "3": 1000, "4": 6291456, "5": 16384, "6": 262144}
WINDOW_UPDATE15663105
PRIORITY frames0
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
t12d1515h2_8daaf6152771_4d8a99c1bc0115
t13d1514h2_8daaf6152771_a664a5d177597
t12d1515h2_8daaf6152771_98afadeeacd94
t13d1313h2_f57a46bbacb6_7f0f34a4126d1
t13d0307h2_55b375c5d22e_e31b90bacf3d1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn05enus_f649ff7cdbc1_000000000000_0000000000009
ge20nr09zhcn_4886f2cdeb15_000000000000_0000000000004
ge20nr010000_a510e5066512_000000000000_0000000000003
ge20nn010000_a510e5066512_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: java-httpclient 17.0.19, java-httpclient 11.0.31, winhttp 10.0.20348.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog.2
ge20nr09enus_4886f2cdeb15_000000000000_0000000000002
ge20nr09zhcn_b736adc228f1_000000000000_0000000000002
ge20nn000000_000000000000_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.1, rust-hyper 1.12.0, rust-hyper 1.11.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr08zhcn_429dfdb82413_000000000000_0000000000001
ge20nr09enus_b736adc228f1_000000000000_0000000000001
ge20cn12enus_69f95e78e872_671739d533b7_07be749239bc1

TCP SYN (p0f)

fingerprintco-occurrences
4:53+11:0:1460:65535,10:mss,sok,ts,nop,ws:df,id+:08
6:48+16:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:03
6:48+16:0:1432:65535,8:mss,nop,ws,sok,ts:flow:03
4:57+7:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:02
4:55+9:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:02
6:54+10:0:8440:mss*7,7:mss,sok,ts,nop,ws:flow:02
6:52+12:0:1404:mss*45,7:mss,sok,ts,nop,ws:flow:02
4:111+17:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:01
6:49+15:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
6:54+10:0:1440:65535,10:mss,sok,ts,nop,ws:flow:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_108
64800_2-4-8-1-3_1440_74
62727_2-4-8-1-3_1460_104
65535_2-1-3-4-8_1432_83
59080_2-4-8-1-3_8440_72
64800_2-4-8-1-3_1404_72
64240_2-1-3-1-1-4_1460_81
64800_2-4-8-1-3_1440_91
65535_2-1-3-1-1-8-4-0-0_1452_61
65535_2-4-8-1-3_1440_101

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.3610
Adnet-Proxy-Verification/1.09
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36 Edg/146.0.0.03
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.11
avtocod/3 CFNetwork/3826.600.41 Darwin/24.6.01

Country

fingerprintco-occurrences
US · United States19
CN · China6
DE · Germany1
HK · Hong Kong SAR China1
RU · Russia1

Network (ASN)

fingerprintco-occurrences
AS46997 · Black Mesa Corporation9
AS16509 · Amazon.com, Inc.4
AS4134 · CHINANET BACKBONE4
AS63949 · Akamai Connected Cloud2
AS14061 · DigitalOcean, LLC2
AS132203 · Tencent Building, Kejizhongyi Avenue2
AS45102 · Alibaba (US) Technology Co., Ltd.2
AS24940 · Hetzner Online GmbH1
AS57378 · JSC ER-Telecom Holding1
AS153771 · Heptasky Hong Kong Limited1