TLS ClientHello (JA4)

t13d0910h2_bd9fe8e34c82_560390466015

first seen 2026-08-18 07:35 · last seen 2026-09-25 20:44 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count9
Extension count10
ALPNh2
Ciphers0035, 009c, 1301, 1302, 1303, c013, c02b, c02c, c02f
Extensions000a, 000b, 000d, 0017, 002b, 002d, 0033, ff01
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601
JA4_rt13d0910h2_0035,009c,1301,1302,1303,c013,c02b,c02c,c02f_000a,000b,000d,0017,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601
JA4_o (sample)t13d0910h2_c72978e7f5f4_53f82a982eda
JA4_ro (sample)t13d0910h2_1301,1302,1303,0035,c02f,c02c,c013,c02b,009c_002d,000a,000b,0017,0010,000d,ff01,0000,002b,0033_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_0000000000006

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p6

TCP SYN (p0f)

fingerprintco-occurrences
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:1460:32768,10:mss,nop,ws,sok,ts::01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_74
64240_2-4-8-1-3_1460_101
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/135.0.0.3 Safari/537.36 Edg/135.0.0.36

Country

fingerprintco-occurrences
DE · Germany3
US · United States2
NL · Netherlands1

Network (ASN)

fingerprintco-occurrences
AS215125 · Church of Cyberology1
AS27284 · Fourplex Telecom LLC1
AS205100 · F3 Netze e.V.1
AS62744 · Quintex Alliance Consulting1
AS680 · Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.1
AS58087 · Florian Kolb1