TLS ClientHello (JA4)

t13d0710h2_5071f435915b_560390466015

first seen 2026-10-10 11:08 · last seen 2026-10-12 10:16 · 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	`7`
Extension count	`10`
ALPN	`h2`
Ciphers	`0035, 009c, 1301, 1302, 1303, c013, cca9`
Extensions	`000a, 000b, 000d, 0017, 002b, 002d, 0033, ff01`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601`
JA4_r	`t13d0710h2_0035,009c,1301,1302,1303,c013,cca9_000a,000b,000d,0017,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601`
JA4_o (sample)	`t13d0710h2_19ac35ad43eb_64338b91da0b`
JA4_ro (sample)	`t13d0710h2_1301,1302,1303,009c,0035,c013,cca9_ff01,000a,002b,0033,002d,0010,000b,000d,0000,0017_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
`4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	1
`4:49+15:0:1460: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`	2

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Safari/605.1.15`	2

Country

fingerprint	co-occurrences
`US` · United States	1
`FR` · France	1

Network (ASN)

fingerprint	co-occurrences
`AS62744` · Quintex Alliance Consulting	1
`AS29075` · IELO Main Network	1