TLS ClientHello (JA4)

t13d1812h1_c62d0c81e055_d41ae481755e

first seen 2026-07-24 08:09 · last seen 2026-07-24 08:09 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count18
Extension count12
ALPNh1
Ciphers002f, 0039, 003c, 009f, 00ff, 1301, 1302, 1303, c009, c00a, c013, c014, c023, c024, c027, c02b, c02c, c030
Extensions000a, 000b, 000d, 0015, 0016, 0017, 0023, 002b, 002d, 0033
Signature algorithms0403, 0503, 0603, 0807, 0808, 0809, 080a, 080b, 0804, 0805, 0806, 0401, 0501, 0601, 0303, 0301, 0302, 0402, 0502, 0602
JA4_rt13d1812h1_002f,0039,003c,009f,00ff,1301,1302,1303,c009,c00a,c013,c014,c023,c024,c027,c02b,c02c,c030_000a,000b,000d,0015,0016,0017,0023,002b,002d,0033_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0301,0302,0402,0502,0602
JA4_o (sample)t13d1812h1_c27cda6845ae_958d92f00bb5
JA4_ro (sample)t13d1812h1_1302,1303,1301,009f,c013,c00a,c009,003c,c014,c030,002f,c024,c023,c02b,c027,0039,c02c,00ff_0000,000b,000a,0023,0010,0016,0017,000d,002b,002d,0033,0015_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0301,0302,0402,0502,0602

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
ge11nn06enus_21ea1759749c_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:53+11:0:8902:mss*7,12:mss,sok,ts,nop,ws:df,id+,ecn:01

TCP SYN (JA4T)

fingerprintco-occurrences
62314_2-4-8-1-3_8902_121

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.01

Country

fingerprintco-occurrences
SE · Sweden1

Network (ASN)

fingerprintco-occurrences
AS214503 · QuxLabs AB1