TLS ClientHello (JA4)

t13d171000_5b57614c22b0_86dd91ae2a36

first seen 2026-09-17 20:23 · last seen 2026-09-18 17:55 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count17
Extension count10
ALPN00
Ciphers002f, 0035, 009c, 009d, 1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0017, 002b, 002d, 0033, ff01
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601, 0201
JA4_rt13d171000_002f,0035,009c,009d,1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0017,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601,0201
JA4_o (sample)t13d171000_975a97fbd916_bb3928b4dad7
JA4_ro (sample)t13d171000_1301,1302,1303,c02b,c02c,cca9,c02f,c030,cca8,c009,c00a,c013,c014,009c,009d,002f,0035_0000,0017,ff01,000a,000b,0005,000d,0033,002d,002b_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
ge11nn010000_4a823118b9ba_000000000000_00000000000013

TCP SYN (p0f)

fingerprintco-occurrences
4:48+16:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:05
4:54+10:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:04
4:49+15:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
4:50+14:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_1013

Country

fingerprintco-occurrences
US · United States9
NL · Netherlands4

Network (ASN)

fingerprintco-occurrences
AS132892 · Cloudflare, Inc.9
AS202623 · Cloudflare Inc4