TLS ClientHello (JA4)

t13d270900_e2a343ec0ac9_8d2a93c08613

first seen 2026-07-01 14:43 · last seen 2026-07-01 14:43 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count27
Extension count9
ALPN00
Ciphers002f, 0033, 0035, 0039, 003c, 003d, 0067, 006b, 009c, 009d, 009e, 009f, 00ff, 1301, 1302, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c, c02f, c030
Extensions000a, 000b, 000d, 0017, 002b, 002d, 0032, 0033
Signature algorithms0403, 0503, 0603, 0804, 0805, 0806, 0809, 080a, 080b, 0401, 0501, 0601, 0303, 0301, 0203, 0201
JA4_rt13d270900_002f,0033,0035,0039,003c,003d,0067,006b,009c,009d,009e,009f,00ff,1301,1302,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030_000a,000b,000d,0017,002b,002d,0032,0033_0403,0503,0603,0804,0805,0806,0809,080a,080b,0401,0501,0601,0303,0301,0203,0201
JA4_o (sample)t13d270900_33ef560da3bf_c0cbe543eb7b
JA4_ro (sample)t13d270900_1302,1301,c02c,c02b,c030,c02f,009f,009e,c024,c028,c023,c027,006b,0067,c00a,c014,c009,c013,0039,0033,009d,009c,003d,003c,0035,002f,00ff_0000,000a,000b,000d,0032,0017,002b,002d,0033_0403,0503,0603,0804,0805,0806,0809,080a,080b,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_c41ada48459b_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:mss*10,10:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
14600_2-4-8-1-3_1460_101

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.01

Country

fingerprintco-occurrences
IT · Italy1

Network (ASN)

fingerprintco-occurrences
AS12874 · Fastweb SpA1