TLS ClientHello (JA4)

q13d0312h3_55b375c5d22e_54754422746d

first seen 2026-09-01 19:08 · last seen 2026-10-08 04:27 · 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	`q (QUIC)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`3`
Extension count	`12`
ALPN	`h3`
Ciphers	`1301, 1302, 1303`
Extensions	`0005, 000a, 000d, 0012, 001b, 002b, 002d, 0033, 0039, 4469`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601`
JA4_r	`q13d0312h3_1301,1302,1303_0005,000a,000d,0012,001b,002b,002d,0033,0039,4469_0403,0804,0401,0503,0805,0501,0806,0601`
JA4_o (sample)	`q13d0312h3_55b375c5d22e_dc7fed3c995c`
JA4_ro (sample)	`q13d0312h3_1301,1302,1303_0000,000a,0010,0005,000d,0012,0033,002d,002b,0039,001b,4469_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
`ge30nn13enus_0c2c1d640f3e_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, edge 151.0.4129.93, +37 more.The fingerprint page shows the full measured match list. More on the catalog.	1
`ge30nn12enus_60f823d07c94_000000000000_000000000000`	1

QUIC transport params

fingerprint	co-occurrences
`q08_bae576bf37b0` Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.	2

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Mobile Safari/537.36`	1
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.64 Safari/537.36 Edg/101.0.1210.47`	1

Country

fingerprint	co-occurrences
`US` · United States	1
`BR` · Brazil	1

Network (ASN)

fingerprint	co-occurrences
`AS28573` · Claro NXT Telecomunicacoes Ltda	1
`AS906` · DMIT Cloud Services	1