TLS ClientHello (JA4)

t13d0912h2_e7820b4ace69_cbb9361b6bf9

first seen 2026-08-17 22:45 · last seen 2026-08-17 22:45 · JSON

Decomposed attributes

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`9`
Extension count	`12`
ALPN	`h2`
Ciphers	`002f, 009d, 1301, 1302, 1303, c013, c02c, cca8, cca9`
Extensions	`000a, 000b, 000d, 0015, 0017, 0023, 002b, 002d, 0033, ff01`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601`
JA4_r	`t13d0912h2_002f,009d,1301,1302,1303,c013,c02c,cca8,cca9_000a,000b,000d,0015,0017,0023,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601`
JA4_o (sample)	`t13d0912h2_065947398d73_1d0965e98564`
JA4_ro (sample)	`t13d0912h2_1301,1302,1303,002f,c013,cca8,cca9,c02c,009d_002d,ff01,0017,0010,0000,000a,000b,000d,002b,0033,0023,0015_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`	1

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`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-4-8-1-3_1460_7`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.9 Safari/537.36`	1

Country

fingerprint	co-occurrences
`CH` · Switzerland	1

Network (ASN)

fingerprint	co-occurrences
`AS53667` · FranTech Solutions	1