TLS ClientHello (JA4)

t13d0911h2_f91f431d341e_78e6aca7449b

first seen 2026-09-01 13:59 · last seen 2026-09-01 13:59 · JSON

Decomposed attributes

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`9`
Extension count	`11`
ALPN	`h2`
Ciphers	`1301, 1302, 1303, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`000a, 000b, 000d, 0017, 0023, 002b, 002d, 0033, ff01`
Signature algorithms	`0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601, 0201`
JA4_r	`t13d0911h2_1301,1302,1303,c02b,c02c,c02f,c030,cca8,cca9_000a,000b,000d,0017,0023,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601,0201`
JA4_o (sample)	`t13d0911h2_b0cee690fc85_9a792e03497a`
JA4_ro (sample)	`t13d0911h2_1301,1302,1303,c02b,c02f,c02c,c030,cca9,cca8_0000,0017,ff01,000a,000b,0023,0010,000d,0033,002d,002b_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
`ge20nn020000_b89ce445e0b3_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.3, +14 more.The fingerprint page shows the full measured match list. More on the catalog.	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`6:48+16:0:1420:mss*45,8:mss,nop,ws,nop,nop,sok:flow:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-1-3-1-1-4_1420_8`	1

User-Agent

fingerprint	co-occurrences
`urllib3.future/2.24.905`	1

Country

fingerprint	co-occurrences
`BR` · Brazil	1

Network (ASN)

fingerprint	co-occurrences
`AS7738` · V tal	1