TLS ClientHello (JA4)

t13d1314h2_f57a46bbacb6_e42f34c56612

first seen 2026-08-30 20:11 · last seen 2026-08-30 20:11 · JSON

Distinct clients per day (last 30 days, peak 1/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

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`13`
Extension count	`14`
ALPN	`h2`
Ciphers	`1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`0005, 000a, 000b, 000d, 0012, 0015, 0017, 001b, 002b, 002d, 0033, ff01`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0805, 0501, 0806, 0601, 0201`
JA4_r	`t13d1314h2_1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0015,0017,001b,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0805,0501,0806,0601,0201`
JA4_o (sample)	`t13d1314h2_a6996a8865d9_b9c16f732f1a`
JA4_ro (sample)	`t13d1314h2_1301,1302,1303,c02c,c02b,cca9,c030,c02f,cca8,c00a,c009,c014,c013_0000,0017,ff01,000a,000b,0010,0005,000d,0012,0033,002d,002b,001b,0015_0403,0804,0401,0503,0805,0805,0501,0806,0601,0201`

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
`ge20nr08enus_0a5873f4dd2b_000000000000_000000000000`	3
`ge20nn07enus_39faa4ed05e7_000000000000_000000000000`	1
`ge20nr07enus_0195bc40dc9f_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`2:0;4:2097152;3:100\|10485760\|0\|m,s,p,a`	3
`2:0;4:2097152;3:100\|10485760\|1:0:0:255\|m,s,p,a`	2

TCP SYN (p0f)

fingerprint	co-occurrences
`4:51+13:0:1452:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:0`	3
`4:52+12:0:1452:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:0`	2

TCP SYN (JA4T)

fingerprint	co-occurrences
`65535_2-1-3-1-1-8-4-0-0_1452_6`	5

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1 GrokApp/1.4.24`	5

Country

fingerprint	co-occurrences
`MA` · Morocco	5

Network (ASN)

fingerprint	co-occurrences
`AS36903` · Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	5