TLS ClientHello (JA4)

t12d1609h2_8cdfa2d4673b_f9c1bad5661c

first seen 2026-07-01 14:34 · last seen 2026-07-01 15:35 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version12
SNId (domain)
Cipher count16
Extension count9
ALPNh2
Ciphers000a, 002f, 0035, 009c, 009d, c009, c00a, c012, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0012, 3374, ff01
Signature algorithms0401, 0403, 0501, 0503, 0601, 0603, 0201, 0203
JA4_rt12d1609h2_000a,002f,0035,009c,009d,c009,c00a,c012,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,3374,ff01_0401,0403,0501,0503,0601,0603,0201,0203
JA4_o (sample)t12d1609h2_ba7f7dc292b7_918a8dca9339
JA4_ro (sample)t12d1609h2_c02f,c030,c02b,c02c,cca8,cca9,c013,c009,c014,c00a,009c,009d,002f,0035,c012,000a_3374,0000,0005,000a,000b,000d,ff01,0010,0012_0401,0403,0501,0503,0601,0603,0201,0203

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
he20nn010000_a510e5066512_000000000000_0000000000002

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;6:8192|1073741824|0|a,m,p,s2

TCP SYN (p0f)

fingerprintco-occurrences
4:43+21:0:1460:mss*44,8:mss,sok,ts,nop,ws:df,id+:01
4:44+20:0:1460:mss*44,8:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_82

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.362

Country

fingerprintco-occurrences
FR · France2

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS2