HTTP/2 frames (Akamai)

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

first seen 2026-06-28 20:22 · last seen 2026-09-16 00:26 · JSON

Last 7 days (8 observations)

Distinct clients per day (last 30 days, peak 13/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_UPDATE	`12517377`
PRIORITY frames	`1:0:0:42`
Pseudo-header order	`m,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)

fingerprint	co-occurrences
`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.	47
`t13d1513h2_8daaf6152771_748f4c70de1c`	11
`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.	4
`t13d1716h2_5b57614c22b0_eeeea6562960` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 132.0, firefox 134.0.The fingerprint page shows the full measured match list. More on the catalog.	2
`t13d1717h2_5b57614c22b0_68c5a8c2958d`	1

HTTP request (JA4H)

fingerprint	co-occurrences
`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.	46
`ge20nn12enus_a72b71f519fc_000000000000_000000000000`	11
`ge20nn030000_ff50983941c1_000000000000_000000000000`	3
`ge20nn13enus_9ec87176373f_000000000000_000000000000`	2
`ge20nn13enus_47bedc02e943_000000000000_000000000000`	1
`ge20nr10dede_9fcbd3f1e2d6_000000000000_000000000000`	1
`ge20nn10enus_9fcbd3f1e2d6_000000000000_000000000000`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`6:47+17:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	12
`4:53+11:0:1380:mss*47,10:mss,sok,ts,nop,ws:df,id+:0`	5
`6:55+9:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	4
`4:36+28:0:1460:65228,7:mss,nop,ws,sok,ts:df:0`	4
`4:54+10:0:1460:32768,10:mss,nop,ws,sok,ts::0`	4
`4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	3
`4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	2
`4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	2
`4:52+12:0:1460:mss*44,13:mss,sok,ts,nop,ws:df,id+:0`	2
`6:42+22:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	2

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-4-8-1-3_1440_7`	22
`64240_2-4-8-1-3_1460_7`	10
`64860_2-4-8-1-3_1380_10`	5
`65228_2-1-3-4-8_1460_7`	5
`32768_2-1-3-4-8_1460_10`	4
`27520_2-4-8-1-3_1340_7`	3
`64440_2-4-8-1-3_1432_7`	2
`64240_2-4-8-1-3_1460_13`	2
`42340_2-1-1-4-1-3_1460_11`	2
`64240_2-4-8-1-3_1460_10`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0`	22
`Mozilla/5.0 (X11; Linux x86_64; rv:152.0) Gecko/20100101 Firefox/152.0`	5
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:144.0) Gecko/20100101 Firefox/144.0`	5
`Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Bravebot/1.0; +https://search.brave.com/help/brave-search-crawler) Chrome/W.X.Y.Z Safari/537.36`	4
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0`	3
`Mozilla/5.0 (X11; Linux x86_64; rv:125.2) Gecko/20100101 Firefox/125.2`	3
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0`	2
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/144.0`	2
`Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.3) Gecko/20100101 Firefox/137.3`	2
`Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.5) Gecko/20100101 Firefox/137.5`	2

Country

fingerprint	co-occurrences
`US` · United States	16
`FI` · Finland	13
`DE` · Germany	8
`NL` · Netherlands	7
`RU` · Russia	5
`SE` · Sweden	4
`CY` · Cyprus	4
`CA` · Canada	2
`KR` · South Korea	1
`BR` · Brazil	1

Network (ASN)

fingerprint	co-occurrences
`AS24940` · Hetzner Online GmbH	13
`AS213230` · Hetzner Online GmbH	7
`AS215125` · Church of Cyberology	5
`AS41601` · NEO Print Ltd.	5
`AS60729` · Stiftung Erneuerbare Freiheit	4
`AS57169` · EDIS GmbH	4
`AS214379` · South Park Networks LLC	4
`AS14061` · DigitalOcean, LLC	2
`AS212238` · Datacamp Limited	2
`AS53667` · FranTech Solutions	2