TLS ClientHello (JA4)

t13d351300_bfa337485184_678a800b2221

first seen 2026-08-26 20:26 · last seen 2026-09-23 19:25 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count35
Extension count13
ALPN00
Ciphers002f, 0033, 0035, 0039, 003c, 003d, 0067, 006b, 009c, 009d, 009e, 009f, 1301, 1302, 1303, 1304, c009, c00a, c013, c014, c023, c027, c02b, c02c, c02f, c030, c09c, c09d, c09e, c09f, c0ac, c0ad, cca8, cca9, ccaa
Extensions000a, 000b, 000d, 0015, 0016, 0017, 001b, 0023, 002b, 002d, 0033, ff01
Signature algorithms0403, 0503, 0603, 0807, 0808, 0809, 080a, 080b, 0804, 0805, 0806, 0401, 0501, 0601, 0303, 0301
JA4_rt13d351300_002f,0033,0035,0039,003c,003d,0067,006b,009c,009d,009e,009f,1301,1302,1303,1304,c009,c00a,c013,c014,c023,c027,c02b,c02c,c02f,c030,c09c,c09d,c09e,c09f,c0ac,c0ad,cca8,cca9,ccaa_000a,000b,000d,0015,0016,0017,001b,0023,002b,002d,0033,ff01_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0301
JA4_o (sample)t13d351300_f8a84e837758_b23989cd3844
JA4_ro (sample)t13d351300_1302,1303,1301,1304,c02c,c030,cca9,cca8,c0ad,c02b,c02f,c0ac,c023,c027,c00a,c014,c009,c013,009d,c09d,009c,c09c,003d,003c,0035,002f,009f,ccaa,c09f,009e,c09e,006b,0067,0039,0033_ff01,0000,000b,000a,0023,0016,0017,000d,002b,002d,0033,001b,0015_0403,0503,0603,0807,0808,0809,080a,080b,0804,0805,0806,0401,0501,0601,0303,0301

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_3658ef221638_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.21.4, wget 1.25.0, wget 1.21.3.The fingerprint page shows the full measured match list. More on the catalog.2
ge11nn040000_5b1e8b5f4d2d_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:41+23:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
6:48+16:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
4:111+17:0:1460:62727,9:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_71
64800_2-4-8-1-3_1440_71
62727_2-4-8-1-3_1460_91

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; V1.2040.0)2
Mozilla/5.01

Country

fingerprintco-occurrences
CH · Switzerland2
IN · India1

Network (ASN)

fingerprintco-occurrences
AS211720 · Datashield, Inc.2
AS16509 · Amazon.com, Inc.1