TLS ClientHello (JA4)

t13d1911h1_9dc949149365_e7c285222651

first seen 2026-09-21 18:07 · last seen 2026-09-21 18:27 · JSON

Decomposed attributes

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`19`
Extension count	`11`
ALPN	`h1`
Ciphers	`000a, 002f, 0035, 009c, 009d, 1301, 1302, 1303, c009, c00a, c012, c013, c014, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`0005, 000a, 000b, 000d, 0012, 0017, 002b, 0033, ff01`
Signature algorithms	`0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203`
JA4_r	`t13d1911h1_000a,002f,0035,009c,009d,1301,1302,1303,c009,c00a,c012,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,002b,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203`
JA4_o (sample)	`t13d1911h1_b565e0f3de94_76bc775a3afc`
JA4_ro (sample)	`t13d1911h1_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,009c,009d,002f,0035,c012,000a,1301,1302,1303_0000,0005,000a,000b,000d,ff01,0017,0010,0012,002b,0033_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203`

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
`ge20nn04zhcn_39a3ba4480e8_000000000000_000000000000`	1
`ge20nn04zhcn_489e636dade7_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`2:0;4:4194304;6:10485760\|1073741824\|0\|a,m,p,s` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.	2

TCP SYN (p0f)

fingerprint	co-occurrences
`4:110+18:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	2

TCP SYN (JA4T)

fingerprint	co-occurrences
`65535_2-1-3-1-1-4_1440_8`	2

User-Agent

fingerprint	co-occurrences
`AwemeLite/113502 CFNetwork/1121.2.2 Darwin/19.2.0`	1
`Dalvik/2.1.0 (Linux; U; Android 9; NX789S Build/PQ3A.190605.05141530)`	1

Country

fingerprint	co-occurrences
`CN` · China	2

Network (ASN)

fingerprint	co-occurrences
`AS4837` · CHINA UNICOM China169 Backbone	2