TLS ClientHello (JA4)

t12d150700_0707305c9f76_0f3b2bcde21d

first seen 2026-09-17 20:21 · last seen 2026-09-18 17:53 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version12
SNId (domain)
Cipher count15
Extension count7
ALPN00
Ciphers000a, 002f, 0035, 009c, 009d, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions000a, 000b, 000d, 0017, 0023, ff01
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601, 0201
JA4_rt12d150700_000a,002f,0035,009c,009d,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_000a,000b,000d,0017,0023,ff01_0403,0804,0401,0503,0805,0501,0806,0601,0201
JA4_o (sample)t12d150700_34758e0f8dad_18edba78feb8
JA4_ro (sample)t12d150700_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,009c,009d,002f,0035,000a_0000,0017,ff01,000a,000b,0023,000d_0403,0804,0401,0503,0805,0501,0806,0601,0201

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_b2e9a2d2ea69_000000000000_00000000000014

TCP SYN (p0f)

fingerprintco-occurrences
6:55+9:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:05
6:46+18:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:03
6:52+12:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:03
4:48+16:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:49+15:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_1011
64240_2-4-8-1-3_1460_103

User-Agent

fingerprintco-occurrences
Dart/2.10 (dart:io)14

Country

fingerprintco-occurrences
US · United States12
NL · Netherlands2

Network (ASN)

fingerprintco-occurrences
AS132892 · Cloudflare, Inc.9
AS202623 · Cloudflare Inc5