HTTP/2 frames (Akamai)

1:65536;2:0;4:6291456;6:262144|15663105|3:1:1:256|m,a,s,p

first seen 2026-07-01 10:19 · last seen 2026-10-23 20:21 · JSON

Distinct clients per day (last 30 days, peak 3/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 frames3:1:1:256
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
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.8
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.2
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

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr19enus_9921e9511126_000000000000_0000000000006
ge20nr13engb_0c2c1d640f3e_000000000000_0000000000002
ge20nn14eses_1ea4ae3ab00a_000000000000_0000000000001
ge20nr15enus_7b10300a3a00_000000000000_0000000000001
ge20nn14zhcn_8f0f52f59d76_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:107+21:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:55+9:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:56+8:0:1460:mss*44,8:mss,sok,ts,nop,ws:df,id+:01
4:108+20:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:107+21:0:1386:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:102+26:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:106+22:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:105+23:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:01
4:53+11:0:8960:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1440_86
64240_2-4-8-1-3_1460_102
64240_2-4-8-1-3_1460_81
65535_2-1-3-1-1-4_1386_81
65535_2-1-3-1-1-8-4-0-0_8960_61

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.7444.162 Safari/537.363
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/142.0.0.0 Mobile 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/151.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.7444.163 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.7444.175 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.7390.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States4
AU · Australia2
IE · Ireland2
NL · Netherlands1
FR · France1
PT · Portugal1

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation4
AS38195 · Superloop2
AS8070 · Microsoft Corporation2
AS16276 · OVH SAS1
AS3243 · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.1
AS25820 · IT7 Networks Inc1

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.1