TLS ClientHello (JA4)

t13d3113h1_e8f1e7e78f70_d339722ba4af

first seen 2026-07-01 14:35 · last seen 2026-09-14 00:12 · JSON

Last 7 days (3 observations)

Distinct clients per day (last 30 days, peak 2/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

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`31`
Extension count	`13`
ALPN	`h1`
Ciphers	`002f, 0033, 0035, 0039, 003c, 003d, 0067, 006b, 009c, 009d, 009e, 009f, 00ff, 1301, 1302, 1303, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c, c02f, c030, cca8, cca9, ccaa`
Extensions	`000a, 000b, 000d, 0015, 0016, 0017, 0023, 002b, 002d, 0031, 0033`
Signature algorithms	`0403, 0503, 0603, 0807, 0808, 0809, 080a, 080b, 0804, 0805, 0806, 0401, 0501, 0601, 0303, 0301, 0302, 0402, 0502, 0602`
JA4_r	`t13d3113h1_002f,0033,0035,0039,003c,003d,0067,006b,009c,009d,009e,009f,00ff,1301,1302,1303,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030,cca8,cca9,ccaa_000a,000b,000d,0015,0016,0017,0023,002b,002d,0031,0033_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0301,0302,0402,0502,0602`
JA4_o (sample)	`t13d3113h1_d7c3e2abb617_27eeccac9c9d`
JA4_ro (sample)	`t13d3113h1_1302,1303,1301,c02c,c030,009f,cca9,cca8,ccaa,c02b,c02f,009e,c024,c028,006b,c023,c027,0067,c00a,c014,0039,c009,c013,0033,009d,009c,003d,003c,0035,002f,00ff_0000,000b,000a,0023,0010,0016,0017,0031,000d,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)

fingerprint	co-occurrences
`ge11nn030000_7dedce931117_000000000000_000000000000`	59
`ge11nn050000_f42f60d0fe7d_000000000000_000000000000`	4
`ge11nn040000_5b1e8b5f4d2d_000000000000_000000000000`	1
`ge11nn050000_ea6f06182064_000000000000_000000000000`	1
`ge11nn05sr00_2003f5c6c2db_000000000000_000000000000`	1

TCP SYN (p0f)

fingerprint	co-occurrences
`6:48+16:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	11
`6:52+12:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	9
`6:54+10:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	8
`6:51+13:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	7
`6:53+11:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	4
`6:47+17:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	3
`6:50+14:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	3
`6:51+13:0:8440:mss*7,7:mss,nop,nop,sok,nop,ws:flow:0`	3
`6:50+14:0:8440:mss*7,7:mss,nop,nop,sok,nop,ws:flow:0`	3
`6:46+18:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	3

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-1-1-4-1-3_1440_7`	50
`59080_2-1-1-4-1-3_8440_7`	9
`64240_2-4-8-1-3_1460_7`	2
`64240_2-4-8-1-3_1452_10`	2
`64800_2-4-8-1-3_1440_7`	1
`64240_2-4-8-1-3_1440_10`	1
`64440_2-4-8-1-3_1432_10`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36`	59
`fingerprint-security-thumbprint-probe/1.0`	3
`KBCnetBot/1.0 (+https://kbcnet.rs/)`	2
`InfiniteInfoMVP/0.1 (local research monitor; contact: local-user)`	1
`vroni-job-signals/1.0 (+manual review)`	1

Country

fingerprint	co-occurrences
`US` · United States	42
`DE` · Germany	12
`CA` · Canada	5
`VN` · Vietnam	3
`RS` · Serbia	2
`AU` · Australia	1
`HK` · Hong Kong SAR China	1

Network (ASN)

fingerprint	co-occurrences
`AS14061` · DigitalOcean, LLC	47
`AS63949` · Akamai Connected Cloud	12
`AS18403` · FPT Telecom Company	2
`AS52026` · TRUF d.o.o.	2
`AS42960` · VH Global Limited	1
`AS12312` · ecotel communication ag	1
`AS24088` · Hanoi Telecom Joint Stock Company - HCMC Branch	1