HTTP/2 frames (Akamai)

1:65536;2:0;4:131072;5:16384|12517377|9:0:0:42|m,p,a,s

first seen 2026-06-29 10:32 · last seen 2026-10-31 04:59 · JSON

Last 7 days (8 observations)

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": 131072, "5": 16384}
WINDOW_UPDATE12517377
PRIORITY frames9:0:0:42
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
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.22
t13d1715h2_5b57614c22b0_a54fffd0eb619
t13d1517h2_8daaf6152771_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 155.0.1, firefox 154.0, firefox 156.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.9
t13d1615h2_86a278354501_a54fffd0eb618
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog.5
t13d1517h2_8daaf6152771_6f4c3a25c8013
t13d1617h2_86a278354501_3e9721a6796e2
t13d1514h2_8daaf6152771_7bdcd1fc0afb2
t13d1616h2_86a278354501_0c27189014cf Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog.1
t13d1714h2_5b57614c22b0_53a6d0ab1c421

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr11enus_3901d4197baf_000000000000_00000000000017
ge20nr12enus_a72b71f519fc_000000000000_00000000000010
ge20nn12enus_a72b71f519fc_000000000000_0000000000007
ge20nn11enus_3901d4197baf_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 153.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.4
ge20nn11ruru_3901d4197baf_000000000000_0000000000004
ge20nr13enus_016d87568c43_000000000000_0000000000003
ge20nr13enus_52a9a314672a_000000000000_0000000000003
ge20nr13engb_016d87568c43_000000000000_0000000000002
ge20nn13enus_016d87568c43_000000000000_0000000000001
ge20nr13enus_dee81a311bfc_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:115+13:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:07
4:50+14:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:06
4:55+9:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
4:54+10:0:1460: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+:02
4:36+28:0:1460:65228,7:mss,nop,ws,sok,ts:df:02
4:114+14:0:1360:mss*48,8:mss,nop,ws,nop,nop,sok:df,id+:02
4:39+25:0:1380:mss*47,10:mss,sok,ts,nop,ws:df,id+:02
4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_1013
64240_2-1-3-1-1-4_1460_87
64860_2-4-8-1-3_1380_105
64800_2-4-8-1-3_1440_74
64240_2-4-8-1-3_1460_73
65228_2-1-3-4-8_1460_73
65535_2-4-8-1-3_1460_62
65280_2-1-3-1-1-4_1360_82
59640_2-1-3-4-0-0_1420_82
64800_2-4-8-1-3_1440_101

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64; rv:152.0) Gecko/20100101 Firefox/152.09
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:153.0) Gecko/20100101 Firefox/153.09
Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.06
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.04
Mozilla/5.0 (X11; Linux x86_64; rv:153.0) Gecko/20100101 Firefox/153.04
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.03
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:149.0) Gecko/20100101 Firefox/149.03
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:156.0) Gecko/20100101 Firefox/156.03
Mozilla/5.0 (X11; Linux x86_64; rv:157.0) Gecko/20100101 Firefox/157.03
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.02

Country

fingerprintco-occurrences
US · United States7
CA · Canada7
HU · Hungary7
RU · Russia6
DE · Germany4
FR · France4
AU · Australia3
NO · Norway3
NL · Netherlands3
CH · Switzerland3

Network (ASN)

fingerprintco-occurrences
AS5483 · Magyar Telekom Plc.7
AS16276 · OVH SAS3
AS701 · Verizon Business3
AS5645 · TekSavvy Solutions, Inc.3
AS209854 · Cyberzone S.A.3
AS41601 · NEO Print Ltd.3
AS38195 · Superloop2
AS15557 · Societe Francaise Du Radiotelephone - SFR SA2
AS5410 · Bouygues Telecom SA2
AS56655 · Gigahost AS1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018,0019,0100,01018
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1
11ec,001d,0017,0018,0019,02021