TLS ClientHello (JA4)

t13d311100_1d947a95fc68_fa269c3d986d

first seen 2026-06-14 00:38 · last seen 2026-10-12 23:01 · JSON

Distinct clients per day (last 30 days, peak 9/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 version13
SNId (domain)
Cipher count31
Extension count11
ALPN00
Ciphers0032, 0033, 0038, 0039, 0040, 0067, 006a, 006b, 009e, 009f, 00a2, 00a3, 00ff, 1301, 1302, 1303, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c, c02f, c030, cca8, cca9, ccaa
Extensions0005, 000a, 000b, 000d, 0011, 0017, 002b, 002d, 0032, 0033
Signature algorithms0403, 0503, 0603, 0804, 0805, 0806, 0809, 080a, 080b, 0401, 0501, 0601, 0402, 0303, 0301, 0302, 0203, 0201, 0202
JA4_rt13d311100_0032,0033,0038,0039,0040,0067,006a,006b,009e,009f,00a2,00a3,00ff,1301,1302,1303,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030,cca8,cca9,ccaa_0005,000a,000b,000d,0011,0017,002b,002d,0032,0033_0403,0503,0603,0804,0805,0806,0809,080a,080b,0401,0501,0601,0402,0303,0301,0302,0203,0201,0202
JA4_o (sample)t13d311100_cdf1781c2960_a5ff6d8a13cd
JA4_ro (sample)t13d311100_1302,1301,1303,c02c,c02b,cca9,c030,cca8,c02f,009f,ccaa,00a3,009e,00a2,c024,c028,c023,c027,006b,006a,0067,0040,c00a,c014,c009,c013,0039,0038,0033,0032,00ff_0000,0005,000a,000b,000d,0032,0011,0017,002b,002d,0033_0403,0503,0603,0804,0805,0806,0809,080a,080b,0401,0501,0601,0402,0303,0301,0302,0203,0201,0202

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
ge11nr05enus_55e89566f5fe_000000000000_00000000000030
ge11nr030000_0db47b7d240d_000000000000_0000000000001
ge11nr040000_532a1ee47909_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:06
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:05
4:53+11:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:05
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:05
4:42+22:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:03
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:03
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:45+19:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:51+13:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_730
42340_2-4-8-1-3_1460_121

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.3632

Country

fingerprintco-occurrences
FI · Finland29
LT · Lithuania2
NL · Netherlands1

Network (ASN)

fingerprintco-occurrences
AS210006 · Shereverov Marat Ahmedovich15
AS153622 · Madina IT11
AS132359 · M/S ROBI TRADERS3
AS209605 · UAB Host Baltic2
AS44589 · admin@ntservers.pro1