HTTP/2 frames (Akamai)

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

first seen 2026-06-29 23:09 · last seen 2026-11-02 23:57 · JSON

Last 7 days (170 observations)

Distinct clients per day (last 30 days, peak 32/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 frames3:1:0:220
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
t13d1518h2_8daaf6152771_4980c97edce0599
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.315
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, +29 more.The fingerprint page shows the full measured match list. More on the catalog.229
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, +28 more.The fingerprint page shows the full measured match list. More on the catalog.61
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog.15
t13d1517h2_8daaf6152771_dcad5a0539913
t13d1514h2_8daaf6152771_827b515c4f522
t13d1512h2_8daaf6152771_0988277d4e882
t13d2416h2_d95c37398e29_806a8c22fdea2
t13d1517h2_8daaf6152771_b0da82dd1658 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
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, +63 more.The fingerprint page shows the full measured match list. More on the catalog.817
ge20nr12zhcn_54b4638ab28b_000000000000_00000000000055
ge20nr12engb_54b4638ab28b_000000000000_00000000000043
ge20nn030000_4ebf34bca547_000000000000_00000000000030
ge20nr12ruru_54b4638ab28b_000000000000_00000000000026
ge20nr09enus_d05bf764aa1e_000000000000_00000000000012
ge20nr13enus_5907f7c6644a_000000000000_00000000000011
ge20nr12en00_54b4638ab28b_000000000000_0000000000009
ge20nr13ruru_5907f7c6644a_000000000000_0000000000009
ge20nr10enus_00ecf112ab34_000000000000_0000000000008

TCP SYN (p0f)

fingerprintco-occurrences
6:57+7:0:1360:65535,13:mss,sok,ts,nop,ws:flow:090
6:54+10:0:1220:65535,9:mss,sok,ts,nop,ws:flow:082
4:53+11:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:046
6:51+13:0:1220:65535,9:mss,sok,ts,nop,ws:flow:044
6:58+6:0:1360:65535,13:mss,sok,ts,nop,ws:flow:043
6:52+12:0:1220:65535,9:mss,sok,ts,nop,ws:flow:034
6:57+7:0:1220:65535,9:mss,sok,ts,nop,ws:flow:032
6:61+3:0:1220:65535,9:mss,sok,ts,nop,ws:flow:028
6:60+4:0:1220:65535,9:mss,sok,ts,nop,ws:flow:027
6:56+8:0:1220:65535,9:mss,sok,ts,nop,ws:flow:027

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1220_9298
65535_2-4-8-1-3_1360_13184
65535_2-4-8-1-3_1460_9147
64240_2-4-8-1-3_1460_795
65535_2-4-8-1-3_1460_629
64800_2-4-8-1-3_1440_1028
64240_2-4-8-1-3_1460_1027
65535_2-1-3-1-1-4_1460_823
65535_2-1-3-1-1-8-4-0-0_1460_615
65535_2-1-3-1-1-4_1440_813

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36267
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/154.0.0.0 Safari/537.36248
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36114
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.3681
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.3648
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.3635
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.3631
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.3619
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.3615
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.3614

Country

fingerprintco-occurrences
US · United States842
CN · China42
NL · Netherlands39
GB · United Kingdom26
DE · Germany23
AU · Australia18
HK · Hong Kong SAR China18
CA · Canada14
FR · France14
EE · Estonia14

Network (ASN)

fingerprintco-occurrences
AS54113 · Fastly, Inc.238
AS13335 · Cloudflare, Inc.184
AS394192 · Fastly, Inc.171
AS212238 · Datacamp Limited26
AS132892 · Cloudflare, Inc.21
AS38136 · Akari Networks20
AS7922 · Comcast Cable Communications, LLC19
AS9009 · M247 Europe SRL16
AS398781 · OCULUS NETWORKS INC16
AS50673 · Serverius16

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, +13 more.The fingerprint page shows the full measured match list. More on the catalog.505
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.1
11ec,001d,0017,001e,0018,0019,0100,0101 Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1, python-requests 2.34.2, curl 8.23.0, +4 more.The fingerprint page shows the full measured match list. More on the catalog.1

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_653d80c3fe9d134
q13d0312h3_55b375c5d22e_178839b6cec113
q13d0311h3_55b375c5d22e_5a1f323ef56d5
q13d0313h3_55b375c5d22e_eb028bd37c083