TLS ClientHello (JA4)

t12d280700_b75078996b15_6b16546de802

first seen 2026-08-01 08:49 · last seen 2026-08-01 09:05 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version12
SNId (domain)
Cipher count28
Extension count7
ALPN00
Ciphers000a, 0013, 0016, 002f, 0032, 0033, 0035, 0038, 0039, 003c, 003d, 0067, 006b, 009c, 009d, 009e, 009f, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9, ccaa
Extensions000a, 000b, 000d, 0017, 001c, ff01
Signature algorithms0403, 0503, 0603, 0203, 0804, 0805, 0806, 0401, 0501, 0601, 0201, 0402, 0502, 0602, 0202
JA4_rt12d280700_000a,0013,0016,002f,0032,0033,0035,0038,0039,003c,003d,0067,006b,009c,009d,009e,009f,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9,ccaa_000a,000b,000d,0017,001c,ff01_0403,0503,0603,0203,0804,0805,0806,0401,0501,0601,0201,0402,0502,0602,0202
JA4_o (sample)t12d280700_c9d7dae2a276_ec64227279b0
JA4_ro (sample)t12d280700_c02c,c00a,c02b,cca9,c009,c030,c014,c02f,cca8,c013,009f,0039,0038,006b,009e,ccaa,0033,0032,0067,0016,0013,009d,0035,003d,009c,002f,003c,000a_0000,0017,ff01,000a,000b,000d,001c_0403,0503,0603,0203,0804,0805,0806,0401,0501,0601,0201,0402,0502,0602,0202

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
ge11nn030000_32287c24fa5b_000000000000_0000000000005

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1460:mss*20,9:mss,sok,ts,nop,ws:df,id+:02
4:40+24:0:1460:mss*1,9:mss,sok,ts,nop,ws:df,id+:01
6:53+11:0:1432:mss*20,7:mss,sok,ts,nop,ws:flow:01
4:48+16:0:1440:mss*20,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
29200_2-4-8-1-3_1460_92
1460_2-4-8-1-3_1460_91
28640_2-4-8-1-3_1432_71
29200_2-4-8-1-3_1440_71

User-Agent

fingerprintco-occurrences
curl/7.29.05

Country

fingerprintco-occurrences
CN · China5

Network (ASN)

fingerprintco-occurrences
AS38365 · Beijing Baidu Netcom Science and Technology Co., Ltd.2
AS9808 · China Mobile Communications Group Co., Ltd.1
AS4812 · China Telecom (Group)1
AS56046 · China Mobile communications corporation1