TLS ClientHello (JA4)

t13d1412h2_cbb2034c60b8_e5728521abd4

first seen 2026-07-01 15:22 · last seen 2026-07-01 15:22 · JSON

Decomposed attributes

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`14`
Extension count	`12`
ALPN	`h2`
Ciphers	`1301, 1302, 1303, c009, c00a, c012, c013, c014, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`0005, 000a, 000b, 000d, 0012, 0017, 002b, 0032, 0033, ff01`
Signature algorithms	`0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203`
JA4_r	`t13d1412h2_1301,1302,1303,c009,c00a,c012,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,002b,0032,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203`
JA4_o (sample)	`t13d1412h2_3d8068cd441b_c9c082b8df90`
JA4_ro (sample)	`t13d1412h2_cca9,cca8,c02b,c02f,c02c,c030,c009,c013,c00a,c014,c012,1303,1301,1302_0000,000b,ff01,0017,0012,0005,000a,000d,0032,0010,002b,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
`ge20nn020000_fb4f949fd323_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`2:0;4:4194304;5:16384;6:10485760\|1073741824\|0\|a,m,p,s` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.8, go-net/http 1.26.7, +6 more.The fingerprint page shows the full measured match list. More on the catalog.	1

TCP SYN (p0f)

fingerprint	co-occurrences
`6:44+20:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-4-8-1-3_1440_7`	1

User-Agent

fingerprint	co-occurrences
`go-resty/2.16.5 (https://github.com/go-resty/resty)`	1

Country

fingerprint	co-occurrences
`SE` · Sweden	1

Network (ASN)

fingerprint	co-occurrences
`AS39351` · 31173 Services AB	1