TLS ClientHello (JA4)

t13d3613h1_018971650b2c_e7e754ef087b

first seen 2026-06-11 23:09 · last seen 2026-07-10 02:32 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count36
Extension count13
ALPNh1
Ciphers002f, 0033, 0035, 0039, 003c, 003d, 0067, 006b, 009c, 009d, 009e, 009f, 00ff, 1301, 1302, 1303, 1304, c009, c00a, c013, c014, c023, c027, c02b, c02c, c02f, c030, c09c, c09d, c09e, c09f, c0ac, c0ad, cca8, cca9, ccaa
Extensions000a, 000b, 000d, 0015, 0016, 0017, 002b, 002d, 0031, 0033, 3374
Signature algorithms0403, 0503, 0603, 0807, 0808, 0809, 0804, 080a, 0805, 080b, 0806, 0401, 0501, 0601, 0303, 0301, 0203, 0201
JA4_rt13d3613h1_002f,0033,0035,0039,003c,003d,0067,006b,009c,009d,009e,009f,00ff,1301,1302,1303,1304,c009,c00a,c013,c014,c023,c027,c02b,c02c,c02f,c030,c09c,c09d,c09e,c09f,c0ac,c0ad,cca8,cca9,ccaa_000a,000b,000d,0015,0016,0017,002b,002d,0031,0033,3374_0403,0503,0603,0807,0808,0809,0804,080a,0805,080b,0806,0401,0501,0601,0303,0301,0203,0201
JA4_o (sample)t13d3613h1_aa9a9650c48e_7190db355de7
JA4_ro (sample)t13d3613h1_1302,1303,1301,1304,c02c,c030,cca9,cca8,c0ad,c02b,c02f,c0ac,c023,c027,c00a,c014,c009,c013,009d,c09d,009c,c09c,003d,003c,0035,002f,009f,ccaa,c09f,009e,c09e,006b,0067,0039,0033,00ff_0000,000b,000a,3374,0010,0016,0017,0031,000d,002b,002d,0033,0015_0403,0503,0603,0807,0808,0809,0804,080a,0805,080b,0806,0401,0501,0601,0303,0301,0203,0201

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)

fingerprintco-occurrences
ge11nn040000_f61692fab08b_000000000000_0000000000002
he11nn030000_042112399351_000000000000_0000000000001
ge11nn040000_eadb859630ae_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_72

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States3
FI · Finland1

Network (ASN)

fingerprintco-occurrences
AS3257 · GTT Communications Inc.2
AS24940 · Hetzner Online GmbH1
AS7015 · Comcast Cable Communications, LLC1