HTTP/2 frames (Akamai)

1:65536;2:0;4:131072;5:16384|12517377|29:0:0:42|m,p,a,s

first seen 2026-07-01 14:35 · last seen 2026-09-17 09:16 · JSON

Last 7 days (1 observations)

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": 131072, "5": 16384}
WINDOW_UPDATE12517377
PRIORITY frames29:0:0:42
Pseudo-header orderm,p,a,s

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
t13d1715h2_5b57614c22b0_a54fffd0eb612
t13d1617h2_86a278354501_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.3, +10 more.The fingerprint page shows the full measured match list. More on the catalog.2
t13d1615h2_86a278354501_a54fffd0eb612
t13d0916h2_f91f431d341e_0c27189014cf1
t13d1617h2_46e7e9700bed_3cbfd9057e0d1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr13enus_016d87568c43_000000000000_0000000000002
ge20nn12enus_a72b71f519fc_000000000000_0000000000002
ge20nr12enus_a72b71f519fc_000000000000_0000000000001
ge20nr11enus_3901d4197baf_000000000000_0000000000001
ge20nn16enus_c03e27744605_000000000000_0000000000001
ge20nn13de00_016d87568c43_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:50+14:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
4:241+14:0:1420:mss*42,8:mss,nop,ws,sok,eol+1:df,id+:01
6:242+13:0:1440:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:flow:01
6:47+17:0:1440:32768,10:mss,nop,ws,sok,ts:flow:01
4:43+21:0:1400:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,id+:01
6:50+14:0:1440:mss*30,9:mss,nop,nop,ts,nop,ws:flow:01
4:114+14:0:1412:65535,8:mss,nop,ws,nop,nop,sok:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_102
32768_2-1-3-4-8_1440_101
65535_2-1-3-1-1-8-4-0-0_1440_61
65535_2-1-3-1-1-8-4-0-0_1400_61
65535_2-1-3-1-1-4_1412_81
59640_2-1-3-4-0-0_1420_81
43200_2-1-1-8-1-3_1440_91

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.02
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.01
Mozilla/5.0 (X11; Linux x86_64; rv:152.0) Gecko/20100101 Firefox/152.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.01
Mozilla/5.0 (X11; Linux x86_64; rv:153.0) Gecko/20100101 Firefox/153.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:156.0) Gecko/20100101 Firefox/156.01

Country

fingerprintco-occurrences
US · United States3
DE · Germany1
NL · Netherlands1
CA · Canada1
FR · France1
TR · Turkey1

Network (ASN)

fingerprintco-occurrences
AS701 · Verizon Business1
AS215125 · Church of Cyberology1
AS7018 · AT&T Enterprises, LLC1
AS8881 · 1&1 Versatel GmbH1
AS15557 · Societe Francaise Du Radiotelephone - SFR SA1
AS11878 · tzulo, inc.1
AS5645 · TekSavvy Solutions, Inc.1
AS51801 · INTERNET KUTUSU TELEKOMUNIKASYON BILISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI1