TCP SYN (JA4T)

20440_2-4-8-1-3_1460_11

first seen 2026-07-22 16:41 · last seen 2026-07-28 16:30 · JSON

Decomposed attributes

TCP window	`20440`
Option kinds	`2-4-8-1-3`
MSS	`1460`
Window scale	`11`

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
`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.	44
`t13d1516h2_8daaf6152771_806a8c22fdea` Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, chromium 151.0.7922.34, +24 more.The fingerprint page shows the full measured match list. More on the catalog.	41
`t13d4907h2_0d8feac7bc37_7395dae3b2f3` Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog.	3

HTTP request (JA4H)

fingerprint	co-occurrences
`ge20nr12zhcn_54b4638ab28b_000000000000_000000000000`	28
`ge20nr09enus_d05bf764aa1e_000000000000_000000000000`	25
`ge20nn10enus_f7ad313dcc59_000000000000_000000000000`	8
`ge20nn13zhcn_0c2c1d640f3e_000000000000_000000000000`	7
`ge20nn11enus_f60a2dc9f654_000000000000_000000000000`	6
`ge20nn14zhcn_00c893c2b404_000000000000_000000000000`	5
`ge20nr13zhcn_0c2c1d640f3e_000000000000_000000000000`	4
`ge20nn020000_5594a17e7e7e_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.	3
`ge20nr13zhcn_9519c2577190_000000000000_000000000000`	1
`ge20nr15zhcn_a80081d13d36_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`1:65536;2:0;4:6291456;6:262144\|15663105\|1:1:0:220\|m,a,s,p` Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 149.0.7827.102, +59 more.The fingerprint page shows the full measured match list. More on the catalog.	29
`1:65536;2:0;4:6291456;6:262144\|15663105\|1:1:0:256\|m,a,s,p` Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +43 more.The fingerprint page shows the full measured match list. More on the catalog.	19
`1:65536;2:0;4:6291456;6:262144\|15663105\|3:1:0:220\|m,a,s,p` Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 147.0.7727.15, chromium 145.0.7632.6, +21 more.The fingerprint page shows the full measured match list. More on the catalog.	13
`1:65536;2:0;4:6291456;6:262144\|15663105\|5:1:0:220\|m,a,s,p` Match?Exact match in Thumbprint's published controlled catalog captures: chromium 133.0.6943.16, chrome 150.0.7871.128, chromium 148.0.7778.96, +2 more.The fingerprint page shows the full measured match list. More on the catalog.	11
`1:65536;2:0;4:6291456;6:262144\|15663105\|9:1:0:256\|m,a,s,p`	4
`3:100;4:10485760;2:0\|1048510465\|0\|m,s,a,p` Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog.	3
`1:65536;2:0;4:6291456;6:262144\|15663105\|3:1:0:256\|m,a,s,p`	3
`1:65536;2:0;4:6291456;6:262144\|15663105\|7:1:0:256\|m,a,s,p`	2
`1:65536;2:0;4:6291456;6:262144\|15663105\|11:1:0:256\|m,a,s,p`	1
`1:65536;2:0;4:6291456;6:262144\|15663105\|13:1:0:256\|m,a,s,p`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`4:56+8:0:1460:mss*14,11:mss,sok,ts,nop,ws:df,id+:0`	88

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36`	40
`Mozilla/5.0 (iPhone; CPU iPhone OS 26_0_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/148.0.7778.100 Mobile/15E148 Safari/604.1`	33
`Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/148.0.7778.47 Mobile/15E148 Safari/604.1`	6
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36`	5
`curl/8.6.0`	3
`Mozilla/5.0 (Linux; Android 15; Pixel 9) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36`	1

Country

fingerprint	co-occurrences
`US` · United States	88

Network (ASN)

fingerprint	co-occurrences
`AS38136` · Akari Networks	88