HTTP/2 frames (Akamai)

1:65536;2:0;4:6291456;6:262144|15663105|5:1:3:220|m,a,s,p

first seen 2026-08-11 07:51 · last seen 2026-10-24 05:56 · JSON

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 frames5:1:3:220
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_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.3
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.1
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 154.0.8037.57, chrome 152.0.7977.64, +24 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1518h2_8daaf6152771_4980c97edce01

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr12dede_54b4638ab28b_000000000000_0000000000002
ge20nr12engb_54b4638ab28b_000000000000_0000000000001
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, +58 more.The fingerprint page shows the full measured match list. More on the catalog.1
ge20nr13enau_5907f7c6644a_000000000000_0000000000001
ge20nr13enus_c66457727412_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:48+16:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:02
4:43+21:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:49+15:0:1440:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1360:mss*48,7:mss,sok,ts,nop,ws:df,id+:01
6:51+13:0:1220:65535,9:mss,sok,ts,nop,ws:flow:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-8-4-0-0_1460_62
64240_2-4-8-1-3_1460_71
64240_2-4-8-1-3_1440_71
65280_2-4-8-1-3_1360_71
65535_2-4-8-1-3_1220_91

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Mobile Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36 Edg/155.0.0.01

Country

fingerprintco-occurrences
DE · Germany3
AU · Australia1
US · United States1
TR · Turkey1

Network (ASN)

fingerprintco-occurrences
AS50324 · Campus, Hofnetz & Events GmbH2
AS8075 · Microsoft Corporation1
AS24940 · Hetzner Online GmbH1
AS44620 · Netlen Internet Hizmetleri Ltd. Sti.1
AS394192 · Fastly, Inc.1

TLS supported groups

fingerprintco-occurrences
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 155.0.8059.40, chrome 156.0.8078.73, chromium 156.0.8078.47, +8 more.The fingerprint page shows the full measured match list. More on the catalog.2