TLS ClientHello (JA4)

t13d0910h2_81ecf3f9d736_560390466015

first seen 2026-08-17 22:23 · last seen 2026-08-17 23:50 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count9
Extension count10
ALPNh2
Ciphers009d, 1301, 1302, 1303, c013, c014, c02c, c02f, c030
Extensions000a, 000b, 000d, 0017, 002b, 002d, 0033, ff01
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601
JA4_rt13d0910h2_009d,1301,1302,1303,c013,c014,c02c,c02f,c030_000a,000b,000d,0017,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601
JA4_o (sample)t13d0910h2_4dd999178b33_f573c7b404ba
JA4_ro (sample)t13d0910h2_1301,1302,1303,c014,009d,c030,c013,c02f,c02c_0033,000a,ff01,0000,0010,000b,002b,0017,002d,000d_0403,0804,0401,0503,0805,0501,0806,0601

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
ge20nn04enus_989c7cc05c9b_000000000000_0000000000002

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p2

TCP SYN (p0f)

fingerprintco-occurrences
4:50+14:0:1460:mss*29,11:mss,nop,nop,sok,nop,ws:df,id+:01
4:54+10:0:1460:32768,10:mss,nop,ws,sok,ts::01

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-1-1-4-1-3_1460_111
32768_2-1-3-4-8_1460_101

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.2 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.1 Safari/537.361

Country

fingerprintco-occurrences
DE · Germany1
NL · Netherlands1

Network (ASN)

fingerprintco-occurrences
AS60729 · Stiftung Erneuerbare Freiheit1
AS215125 · Church of Cyberology1