TLS ClientHello (JA4)

t13d311000_e8f1e7e78f70_1f22a2ca17c4

first seen 2026-06-23 13:56 · last seen 2026-07-19 14:38 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count31
Extension count10
ALPN00
Ciphers002f, 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
Extensions000a, 000b, 000d, 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_rt13d311000_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,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)t13d311000_d7c3e2abb617_a38b09e5d8d1
JA4_ro (sample)t13d311000_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,0023,0016,0017,000d,002b,002d,0033_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
ge11nn040000_02e32b1f93d4_000000000000_0000000000003
ge11nn050000_65fd75e05a8c_000000000000_0000000000002
ge11nn04en00_b36d5c1caad5_000000000000_0000000000001
ge11nn050000_a1c329e38462_000000000000_0000000000001
ge11nn07enus_9cffa57b58a3_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:110+18:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:03
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:1420:mss*30,7:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:1340:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:53+11:0:1340:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:1460:mss*29,11:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1460_83
64240_2-4-8-1-3_1340_72
64240_2-4-8-1-3_1460_71
42340_2-4-8-1-3_1460_111

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.363
siteglass-intel/1.0 (+https://siteglass.io)2
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.197 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.7827.201 Safari/537.361

Country

fingerprintco-occurrences
US · United States3
CH · Switzerland3
CA · Canada2

Network (ASN)

fingerprintco-occurrences
AS209413 · DEDIK SERVICES LIMITED3
AS212238 · Datacamp Limited2
AS396982 · Google LLC1
AS6939 · Hurricane Electric LLC1
AS7922 · Comcast Cable Communications, LLC1