TLS ClientHello (JA4)

t13d2212h1_3522af84f765_8d633dac7124

first seen 2026-06-13 08:49 · last seen 2026-07-26 14:40 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count22
Extension count12
ALPNh1
Ciphers0005, 000a, 002f, 0032, 0033, 0039, 009c, 009d, 00ff, 1301, 1302, 1303, c007, c009, c00a, c011, c013, c014, c02b, c02c, c02f, c030
Extensions000a, 000b, 000d, 0015, 0016, 0017, 002b, 002d, 0031, 0033
Signature algorithms0403, 0503, 0603, 0807, 0808, 0809, 080a, 080b, 0804, 0805, 0806, 0401, 0501, 0601, 0303, 0203, 0301, 0201, 0302, 0202, 0402, 0502, 0602
JA4_rt13d2212h1_0005,000a,002f,0032,0033,0039,009c,009d,00ff,1301,1302,1303,c007,c009,c00a,c011,c013,c014,c02b,c02c,c02f,c030_000a,000b,000d,0015,0016,0017,002b,002d,0031,0033_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0203,0301,0201,0302,0202,0402,0502,0602
JA4_o (sample)t13d2212h1_c8b75f39c80a_5a3233f87c29
JA4_ro (sample)t13d2212h1_1302,1303,1301,c02f,c02b,c013,c009,c030,c02c,c014,c00a,0033,0039,0032,c011,c007,009c,002f,009d,000a,0005,00ff_0000,000b,000a,0010,0016,0017,0031,000d,002b,002d,0033,0015_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0203,0301,0201,0302,0202,0402,0502,0602

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
ge11nn050000_6381de1c7315_000000000000_0000000000001
ge11nn050000_9caab87a0805_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:73+?:0:1380:65535,8:mss,sok,ts,nop,ws:df,id+:01
6:48+16:0:1380:65535,8:mss,sok,ts,nop,ws::01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1380_81

User-Agent

fingerprintco-occurrences
facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)2

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS32934 · Facebook, Inc.2