TLS ClientHello (JA4)

t13d1615h2_46e7e9700bed_45f260be83e2

first seen 2026-07-01 14:37 · last seen 2026-09-21 18:58 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count16
Extension count15
ALPNh2
Ciphers000a, 002f, 0035, 009c, 009d, 1301, 1302, 1303, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0012, 0015, 0017, 001b, 0023, 002b, 002d, 0033, ff01
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601, 0201
JA4_rt13d1615h2_000a,002f,0035,009c,009d,1301,1302,1303,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0015,0017,001b,0023,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601,0201
JA4_o (sample)t13d1615h2_4e6b5817fc83_b0e5d31d5128
JA4_ro (sample)t13d1615h2_1303,1301,1302,cca9,cca8,c02b,c02f,c02c,c030,c013,c014,009c,009d,002f,0035,000a_0000,0017,ff01,000a,000b,0023,0010,0005,000d,0012,0033,002d,002b,001b,0015_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
ge20nn040000_60e0ac44f2fc_000000000000_0000000000007
ge20nn070000_f3b3a451f7a9_000000000000_0000000000001
ge20nn04zhcn_39a3ba4480e8_000000000000_0000000000001
ge20nn040000_88a74e2f77ec_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;3:1000;4:6291456|15663105|1:1:0:256|m,a,s,p8
1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p1
1:65536;3:1000;4:6291456|15663105|1:1:0:220|m,a,s,p1

TCP SYN (p0f)

fingerprintco-occurrences
4:42+22:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:04
4:45+19:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:110+18:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:02
4:43+21:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:110+18:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_77
65535_2-1-3-1-1-4_1440_82
64240_2-1-3-1-1-4_1460_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36 Edg/122.0.0.07
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.361
AwemeLite/113502 CFNetwork/1121.2.2 Darwin/19.2.01
Dalvik/2.1.0 (Linux; U; Android 9)1

Country

fingerprintco-occurrences
DE · Germany5
CA · Canada2
CN · China2
GB · United Kingdom1

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS7
AS4837 · CHINA UNICOM China169 Backbone2
AS24940 · Hetzner Online GmbH1