HTTP/2 frames (Akamai)

2:0;4:4194304;5:1048576;6:10485760|1073741824|0|a,m,p,s

first seen 2026-08-19 21:02 · last seen 2026-10-30 10:55 · JSON

Matches controlled captures

Known clients driven through this site's own edge produced this exact fingerprint — measured truth, not inference. catalog →

go-net/http 1.27.3 · Alpine Linux 3.24.3 · container — 1 session, last 2026-10-27 23:05 controlled
go-net/http 1.27.3 · Alpine Linux 3.24.2 · container — 1 session, last 2026-10-20 20:13 controlled
go-net/http 1.27.2 · Alpine Linux 3.24.2 · container — 1 session, last 2026-10-08 20:12 controlled
go-net/http 1.27.1 · Alpine Linux 3.24.2 · container — 3 sessions, last 2026-10-06 02:52 controlled
go-net/http 1.27.1 · Alpine Linux 3.24.1 · container — 1 session, last 2026-09-02 21:26 controlled
go-net/http 1.27.0 · Alpine Linux 3.24.1 · container — 3 sessions, last 2026-09-01 00:43 controlled

Last 7 days (10 observations)

Distinct clients per day (last 30 days, peak 4/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	`{"2": 0, "4": 4194304, "5": 1048576, "6": 10485760}`
WINDOW_UPDATE	`1073741824`
PRIORITY frames	`0`
Pseudo-header order	`a,m,p,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
`t13d1312h2_f57a46bbacb6_f50d94e863eb` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.0, go-net/http 1.27.3, +1 more.The fingerprint page shows the full measured match list. More on the catalog.	78
`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.	11
`t13d1715h2_5b57614c22b0_5c2c66f702b0` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 132.0.The fingerprint page shows the full measured match list. More on the catalog.	2
`t13d2014h2_a09f3c656075_14788d8d241b`	2
`t13d1311h2_f57a46bbacb6_e7c285222651` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12, go-net/http 1.24.13.The fingerprint page shows the full measured match list. More on the catalog.	1
`t13d1515h2_8daaf6152771_de4a06bb82e3`	1
`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.	1
`t13d2613h2_2802a3db6c62_845d286b0d67`	1
`t13d1517h2_8daaf6152771_cb7bf5808d99` Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 154.0.8037.57, chrome 152.0.7977.64, +24 more.The fingerprint page shows the full measured match list. More on the catalog.	1
`t13d0313h2_55b375c5d22e_1eb89897b454`	1

HTTP request (JA4H)

fingerprint	co-occurrences
`ge20nr020000_fb4f949fd323_000000000000_000000000000`	53
`ge20nn04enus_39a3ba4480e8_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.1.2.The fingerprint page shows the full measured match list. More on the catalog.	14
`ge20nn020000_b89ce445e0b3_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.0, +14 more.The fingerprint page shows the full measured match list. More on the catalog.	8
`ge20nn030000_ff50983941c1_000000000000_000000000000`	3
`ge20nn04enus_a1e84a948d10_000000000000_000000000000`	3
`ge20nn020000_fb4f949fd323_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.	2
`ge20nn04enus_ded3c6d8f0eb_000000000000_000000000000`	2
`ge20nn04enus_8325a3ce5a12_000000000000_000000000000`	1
`he20nn010000_a510e5066512_000000000000_000000000000`	1
`ge20nr13ruru_4ab217da8a11_000000000000_000000000000`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`4:53+11:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:0`	14
`4:44+20:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:0`	10
`4:51+13:0:1380:mss*47,7:mss,sok,ts,nop,ws:df,id+:0`	8
`4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	7
`4:51+13:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	5
`4:48+16:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:0`	5
`4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	4
`4:52+12:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:0`	4
`4:51+13:0:1280:mss*51,10:mss,sok,ts,nop,ws:df,id+:0`	4
`4:50+14:0:1280:mss*51,10:mss,sok,ts,nop,ws:df,id+:0`	4

TCP SYN (JA4T)

fingerprint	co-occurrences
`7300_2-4-8-1-3_1460_10`	50
`64240_2-4-8-1-3_1460_7`	15
`42340_2-4-8-1-3_1460_9`	9
`65280_2-4-8-1-3_1280_10`	9
`64860_2-4-8-1-3_1380_7`	8
`65280_2-4-8-1-3_1360_7`	3
`64240_2-4-8-1-3_1460_10`	2
`64240_2-4-8-1-3_1440_10`	2
`42600_2-4-8-1-3_1420_7`	1
`64240_2-1-3-1-1-4_1440_8`	1

User-Agent

fingerprint	co-occurrences
`curl/7.74.0`	50
`Go-http-client/2.0`	10
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36`	9
`Mozilla/5.0`	5
`Mozilla/5.0 (iPhone; CPU iPhone OS 17_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1`	2
`Mozilla/5.0 (compatible; Hister/v0.19.0 (118a73a); +https://hister.org/)`	2
`Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0 Safari/537.36`	2
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36`	1
`Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0`	1
`Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0`	1

Country

fingerprint	co-occurrences
`NL` · Netherlands	27
`US` · United States	24
`DE` · Germany	15
`MY` · Malaysia	12
`SG` · Singapore	8
`KR` · South Korea	4
`DK` · Denmark	3
`JP` · Japan	2
`CH` · Switzerland	2
`BR` · Brazil	2

Network (ASN)

fingerprint	co-occurrences
`AS45102` · Alibaba (US) Technology Co., Ltd.	50
`AS47674` · Net Solutions - Consultoria Em Tecnologias De Informacao, Sociedade Unipessoal LDA	13
`AS39351` · 31173 Services AB	6
`AS48090` · TECHOFF SRV LIMITED	5
`AS4766` · Korea Telecom	4
`AS150303` · SoloRDP	4
`AS8075` · Microsoft Corporation	3
`AS13101` · TNG Stadtnetz GmbH	3
`AS204151` · EWII Bredbaand A/S	3
`AS212238` · Datacamp Limited	2

TLS supported groups

fingerprint	co-occurrences
`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.	18
`11ec,11eb,11ed,001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog.	5
`0a0a,001d,0017,0018`	1
`001d,0017,0018,0019,0100,0101`	1
`0a0a,001d,0017,0018,0019`	1