TLS ClientHello (JA4)

t13i191000_9dc949149365_e5728521abd4

first seen 2026-06-11 00:21 · last seen 2026-07-28 02:41 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNIi (no SNI / IP)
Cipher count19
Extension count10
ALPN00
Ciphers000a, 002f, 0035, 009c, 009d, 1301, 1302, 1303, c009, c00a, c012, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0012, 0017, 002b, 0032, 0033, ff01
Signature algorithms0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203
JA4_rt13i191000_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,0032,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203
JA4_o (sample)t13i191000_b565e0f3de94_b0b91dfd59d5
JA4_ro (sample)t13i191000_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,009c,009d,002f,0035,c012,000a,1301,1302,1303_000b,ff01,0017,0012,0005,000a,000d,0032,002b,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)

fingerprintco-occurrences
pr11nr020000_3ed38b250d3d_000000000000_00000000000011
po11nn040000_0f012dde03cf_000000000000_0000000000006
ge11nn06zhcn_732aebc14a04_000000000000_0000000000001
po11nn09zhcn_098a8acbf6f1_000000000000_0000000000001
ge11nn09engb_da48351986bc_000000000000_0000000000001
po11nn10engb_032926de0e6c_000000000000_0000000000001
ge11nn07jajp_6f2a8ed577a5_000000000000_0000000000001
po11nn12enus_dbc7e10451f4_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:07
4:43+21:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:06
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:04
4:50+14:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:04
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_76

User-Agent

fingerprintco-occurrences
-11
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Safari/605.1.153
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.01

Country

fingerprintco-occurrences
NL · Netherlands17
KZ · Kazakhstan6

Network (ASN)

fingerprintco-occurrences
AS211443 · SINO WORLDWIDE TRADING LIMITED11
AS197170 · TechTies Inc.6
AS48716 · PS Internet Company LLP6