HTTP/2 frames (Akamai)

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

first seen 2026-06-10 23:55 · last seen 2026-11-02 21:35 · JSON

Last 7 days (2427 observations)

Distinct clients per day (last 30 days, peak 736/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 frames1:1:0:256
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
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.27637
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.6938
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.2478
t13d1518h2_8daaf6152771_4980c97edce0670
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.565
t13d1517h2_8daaf6152771_b1ff8ab2d16f517
t13d1517h2_8daaf6152771_dcad5a053991121
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, +28 more.The fingerprint page shows the full measured match list. More on the catalog.16
t13d1516h3_8daaf6152771_d8a2da3f94cd15
t13d1514h2_8daaf6152771_827b515c4f5213

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn13enus_0c2c1d640f3e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 151.0.7922.137, chrome 151.0.7922.170, chrome 151.0.7922.108, +40 more.The fingerprint page shows the full measured match list. More on the catalog.31401
ge20nr13enus_e2ac93ffb364_000000000000_0000000000001478
ge20nn12enus_60f823d07c94_000000000000_000000000000612
ge20nn15enus_a80081d13d36_000000000000_000000000000421
ge20nr13enus_0c2c1d640f3e_000000000000_000000000000283
ge20nn13zhcn_0c2c1d640f3e_000000000000_000000000000200
ge20nr13zhcn_e2ac93ffb364_000000000000_000000000000176
ge20nn140000_02563f2d0fa8_000000000000_000000000000165
ge20nr16enus_94fdc06e0694_000000000000_000000000000105
ge20nn15enus_28e542058e45_000000000000_000000000000104

TCP SYN (p0f)

fingerprintco-occurrences
4:110+18:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+:02078
4:53+11:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:01758
4:52+12:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:01722
4:112+16:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+:01346
4:108+20:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+:01058
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0922
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0885
6:43+21:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0587
4:109+19:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+:0569
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0547

TCP SYN (JA4T)

fingerprintco-occurrences
8192_2-1-3-1-1-4_1460_86947
64240_2-4-8-1-3_1460_75806
65535_2-4-8-1-3_1460_95601
29200_2-4-8-1-3_1460_71918
29200_2-1-1-4-1-3_1460_91195
64800_2-4-8-1-3_1440_71186
65535_2-1-3-1-1-4_1460_81081
65535_2-4-8-1-3_1412_6946
65535_2-4-8-1-3_1460_6843
16060_2-4-8-1-3_1250_3807

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.3626914
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36660
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36656
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36620
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36527
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36473
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36431
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36414
Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)339
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36325

Country

fingerprintco-occurrences
CN · China15403
US · United States11304
BR · Brazil1729
GB · United Kingdom722
TR · Turkey711
DE · Germany684
SG · Singapore525
NL · Netherlands370
FR · France360
IT · Italy328

Network (ASN)

fingerprintco-occurrences
AS203020 · HostRoyale Technologies Pvt Ltd3272
AS4134 · CHINANET BACKBONE3022
AS4811 · China Telecom (Group)1649
AS139587 · China Telecom Henan Zhengzhou Shujugang IDC network1234
AS4837 · CHINA UNICOM China169 Backbone1195
AS58772 · CHINANET Fujian province Fuzhou IDC network1174
AS212238 · Datacamp Limited1112
AS20473 · The Constant Company, LLC994
AS134768 · CHINANET SHAANXI province Cloud Base network907
AS62874 · Web2Objects LLC796

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.6294
0a0a,001d,0017,00181574
0a0a,6399,001d,0017,0018185
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.3
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_653d80c3fe9d2
q13d0311h3_55b375c5d22e_5a1f323ef56d2