HTTP/2 frames (Akamai)

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

first seen 2026-06-11 00:27 · last seen 2026-10-31 23:56 · JSON

Last 7 days (20 observations)

Distinct clients per day (last 30 days, peak 6/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, "6": 10485760}
WINDOW_UPDATE1073741824
PRIORITY frames0
Pseudo-header ordera,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)

fingerprintco-occurrences
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.96
t13d1411h2_cbb2034c60b8_e7c28522265170
t13d1911h2_9dc949149365_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.61
t13d2512h1_b78ed14e2fd0_ab7e3b40a67717
t13d2511h2_b78ed14e2fd0_e7c28522265116
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.8
t13d1912h2_9dc949149365_e5728521abd46
t13d1910h2_9dc949149365_97f8aa674fd95
t13d1911h1_9dc949149365_e7c2852226512
t13d1515h2_8daaf6152771_98afadeeacd91

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr020000_fb4f949fd323_000000000000_00000000000075
ge20nn04enus_a1e84a948d10_000000000000_00000000000026
ge20nn04zhcn_4bdba6e1e609_000000000000_00000000000020
ge20nn020000_fb4f949fd323_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.9, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.18
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.16
ge20nr04enus_a1e84a948d10_000000000000_00000000000015
ge20nr010000_73b42ef9ea4d_000000000000_00000000000011
ge20nr04enus_39a3ba4480e8_000000000000_0000000000009
ge20nn04zhcn_6e6dd1d8c348_000000000000_0000000000009
ge20nn04enus_8325a3ce5a12_000000000000_0000000000007

TCP SYN (p0f)

fingerprintco-occurrences
4:122+6:0:1420:mss*46,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:051
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:021
4:53+11:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:018
4:55+9:0:1360:mss*48,7:mss,sok,ts,nop,ws:df,id+:014
4:121+7:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:012
4:46+18:0:1412:mss*1,9:mss,sok,ts,nop,ws:df,id+:011
4:45+19:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:09
4:48+16:0:1460:mss*1,9:mss,sok,ts,nop,ws:df,id+:08
4:43+21:0:1412:mss*1,9:mss,sok,ts,nop,ws:df,id+:08
4:56+8:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:07

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_765
65320_2-1-3-1-1-4_1420_852
1412_2-4-8-1-3_1412_928
62727_2-4-8-1-3_1460_716
65280_2-4-8-1-3_1360_716
64240_2-4-8-1-3_1460_1014
64800_2-4-8-1-3_1440_913
1460_2-4-8-1-3_1460_913
64952_2-4-8-1-3_1412_710
65535_2-4-8-1-3_1460_118

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.3688
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.3644
Mozilla/5.0 (compatible; CMS-Checker/1.0; +https://example.com)34
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.3626
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.3618
Mozilla/5.0 (compatible; wpbot/1.4; +https://forms.gle/ajBaxygz9jSR8p8G9)17
Go-http-client/2.010
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.369
PipericBot/1.0 (+https://piperic.com/bot)7
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.365

Country

fingerprintco-occurrences
US · United States101
HK · Hong Kong SAR China44
CH · Switzerland35
UA · Ukraine19
DE · Germany18
SG · Singapore15
CN · China13
SI · Slovenia11
NL · Netherlands10
ID · Indonesia7

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC57
AS135377 · UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED29
AS58215 · Omniline Investment s.r.o.28
AS197769 · VPS Dedicated LLC20
AS62164 · Heymman Servers Corporation20
AS16509 · Amazon.com, Inc.18
AS45102 · Alibaba (US) Technology Co., Ltd.16
AS9465 · AGOTOZ PTE. LTD.15
AS43180 · Trunk Networks LTD12
AS58466 · CHINANET Guangdong province network11

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.23
0a0a,001d,0017,001820
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.1