TLS ClientHello (JA4)

q13d0308h3_55b375c5d22e_f0736a66fa6b

first seen 2026-06-26 03:05 · last seen 2026-07-09 23:11 · JSON

Decomposed attributes

Protocol	`q (QUIC)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`3`
Extension count	`8`
ALPN	`h3`
Ciphers	`1301, 1302, 1303`
Extensions	`000a, 000d, 002b, 002d, 0033, 0039`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601, 0201`
JA4_r	`q13d0308h3_1301,1302,1303_000a,000d,002b,002d,0033,0039_0403,0804,0401,0503,0805,0501,0806,0601,0201`
JA4_o (sample)	`q13d0308h3_55b375c5d22e_9842114b01fc`
JA4_ro (sample)	`q13d0308h3_1301,1302,1303_0000,000a,0010,000d,0033,002d,002b,0039_0403,0804,0401,0503,0805,0501,0806,0601,0201`

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
`he30nn020000_3ed38b250d3d_000000000000_000000000000`	1
`ge30nn010000_a510e5066512_000000000000_000000000000`	1
`he30nn010000_a510e5066512_000000000000_000000000000`	1

QUIC transport params

fingerprint	co-occurrences
`q11_38b737c2f836`	2
`q12_d7b21d970f2f`	1

User-Agent

fingerprint	co-occurrences
`http3check.net/lsquic/4.0.0`	2
`quiche`	1

Country

fingerprint	co-occurrences
`US` · United States	3

Network (ASN)

fingerprint	co-occurrences
`AS20473` · The Constant Company, LLC	2
`AS16509` · Amazon.com, Inc.	1