TLS ClientHello (JA4)

t13d0811h2_20f52ab92984_9ced094328c9

first seen 2026-08-17 22:03 · last seen 2026-08-18 06:53 · JSON

Decomposed attributes

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`8`
Extension count	`11`
ALPN	`h2`
Ciphers	`002f, 009c, 009d, 1301, 1302, 1303, c02c, cca8`
Extensions	`000a, 000b, 000d, 0017, 0023, 002b, 002d, 0033, ff01`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601`
JA4_r	`t13d0811h2_002f,009c,009d,1301,1302,1303,c02c,cca8_000a,000b,000d,0017,0023,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601`
JA4_o (sample)	`t13d0811h2_bacfec63dd70_4e217956b1c8`
JA4_ro (sample)	`t13d0811h2_1301,1302,1303,cca8,009c,009d,c02c,002f_0000,000d,ff01,000a,0010,0017,002b,000b,002d,0023,0033_0403,0804,0401,0503,0805,0501,0806,0601`

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.

HTTP request (JA4H)

fingerprint	co-occurrences
`ge20nn04enus_989c7cc05c9b_000000000000_000000000000`	2

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`1:65536;2:0;4:6291456;6:262144;4:1048576\|15663105\|1:0:0:256\|m,a,s,p`	2

TCP SYN (p0f)

fingerprint	co-occurrences
`4:54+10:0:8960:mss*7,7:mss,sok,ts,nop,ws:df,id+:0`	1
`4:54+10:0:1460:32768,10:mss,nop,ws,sok,ts::0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`62720_2-4-8-1-3_8960_7`	1
`32768_2-1-3-4-8_1460_10`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.9 Safari/537.36 Edg/134.0.0.9`	1
`Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.5 Safari/537.36`	1

Country

fingerprint	co-occurrences
`NL` · Netherlands	1
`SE` · Sweden	1

Network (ASN)

fingerprint	co-occurrences
`AS215125` · Church of Cyberology	1
`AS214503` · QuxLabs AB	1