HTTP/2 frames (Akamai)

1:65536;2:0;4:6291456;6:262144|15663105|1:0:0:256|m,a,s,p

first seen 2026-07-18 21:38 · last seen 2026-11-01 22:58 · JSON

Last 7 days (7 observations)

Distinct clients per day (last 30 days, peak 4/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 frames1:0:0:256
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
t13d2812h2_257f3020b3a2_cbb9361b6bf983
t13d1518h2_8daaf6152771_e2d80978ab2e Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 156.0.8078.48, chrome 154.0.8037.57, +27 more.The fingerprint page shows the full measured match list. More on the catalog.9
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 156.0.8078.48, chrome 154.0.8037.57, +27 more.The fingerprint page shows the full measured match list. More on the catalog.3
t13d0914h2_05c2414c200e_62d62328d5883
t13d1515h2_8daaf6152771_98afadeeacd93
t13d1512h2_8daaf6152771_ef7df7f74e483
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.2
t13d1510h2_8daaf6152771_5603904660152
t13d1512h2_8daaf6152771_b378ea51cc812
t13d1512h2_8daaf6152771_692424f3e1f72

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.3, +14 more.The fingerprint page shows the full measured match list. More on the catalog.85
ge20nn010000_379fadc6c8b7_000000000000_00000000000062
ge20nn04enus_989c7cc05c9b_000000000000_0000000000007
ge20cr06enus_ba5e17eeb7c7_000000000000_0000000000007
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.6
ge20cn010000_379fadc6c8b7_000000000000_0000000000002
ge20nr020000_332fce1c30d2_000000000000_0000000000001
ge20cn06enus_ba5e17eeb7c7_000000000000_0000000000001
ge20nn14zhcn_56edac0d91b5_000000000000_0000000000001
ge20nr12zhcn_f6a094a84bdf_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
6:55+9:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:081
4:111+17:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:013
4:43+21:0:1400:65535,6:mss,sok,ts,nop,ws:df,id+:04
4:53+11:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:03
4:49+15:0:1412:65535,6:mss,sok,ts,nop,ws:df,id+:03
4:46+18:0:1400:65535,6:mss,sok,ts,nop,ws:df,id+:02
4:111+17:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:02
4:112+16:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:02
4:47+17:0:1460:65535,6:mss,sok,ts,nop,ws:df,id+:02
4:46+18:0:1452:65535,6:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_781
65535_2-1-3-1-1-4_1440_815
65535_2-4-8-1-3_1400_613
65535_2-4-8-1-3_1412_611
65535_2-4-8-1-3_1460_610
65535_2-4-8-1-3_1452_610
65535_2-4-8-1-3_1440_66
64240_2-4-8-1-3_1412_15
65535_2-4-8-1-3_1420_64
64240_2-4-8-1-3_1460_73

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.3644
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.3614
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.8 Safari/537.3614
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.3610
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.365
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.365
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.364
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.364
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
SE · Sweden81
CN · China17
BR · Brazil13
IQ · Iraq7
JO · Jordan6
VE · Venezuela6
DE · Germany5
CO · Colombia4
IN · India3
TR · Turkey3

Network (ASN)

fingerprintco-occurrences
AS214379 · South Park Networks LLC81
AS4134 · CHINANET BACKBONE14
AS200373 · 3xK Tech GmbH3
AS9808 · China Mobile Communications Group Co., Ltd.3
AS199739 · Earthlink Telecommunications Equipment Trading & Services DMCC3
AS216472 · High Speed For Internet Services L.L.C3
AS24940 · Hetzner Online GmbH2
AS48832 · Jordanian mobile phone services Ltd2
AS203214 · Hulum Almustakbal Company for Communication Engineering and Services Ltd2
AS6057 · Administracion Nacional de Telecomunicaciones2

TLS supported groups

fingerprintco-occurrences
001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.11.27, winhttp 10.0.20348.1, +2 more.The fingerprint page shows the full measured match list. More on the catalog.11