TLS ClientHello (JA4)

t12d240600_9295eb73ea51_3ca778f33b42

first seen 2026-10-29 08:27 · last seen 2026-10-29 08:27 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Protocolt (TLS over TCP)
TLS version12
SNId (domain)
Cipher count24
Extension count6
ALPN00
Ciphers000a, 0013, 002f, 0032, 0035, 0038, 003c, 003d, 0040, 006a, 009c, 009d, 009e, 009f, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c
Extensions000a, 000b, 000d, 0023, ff01
Signature algorithms0601, 0603, 0401, 0501, 0201, 0403, 0503, 0203, 0202
JA4_rt12d240600_000a,0013,002f,0032,0035,0038,003c,003d,0040,006a,009c,009d,009e,009f,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c_000a,000b,000d,0023,ff01_0601,0603,0401,0501,0201,0403,0503,0203,0202
JA4_o (sample)t12d240600_87c2215237ae_0198700a834c
JA4_ro (sample)t12d240600_c028,009f,009e,009d,009c,c02b,c023,c027,c014,c013,003d,003c,0035,002f,c02c,c024,c00a,c009,006a,0040,0038,0032,000a,0013_ff01,0000,000a,000b,000d,0023_0601,0603,0401,0501,0201,0403,0503,0203,0202

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
ge11nn07enus_cd7ec0386c6b_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:110+18:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:01

TCP SYN (JA4T)

fingerprintco-occurrences
8192_2-1-3-1-1-4_1460_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
RU · Russia1

Network (ASN)

fingerprintco-occurrences
AS198953 · Proton66 OOO1

TLS supported groups

fingerprintco-occurrences
0017,00181