TLS ClientHello (JA4)

t13d191100_9dc949149365_be53661681a4

first seen 2026-06-20 03:20 · last seen 2026-09-14 01:51 · JSON

Last 7 days (2 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count19
Extension count11
ALPN00
Ciphers000a, 002f, 0035, 009c, 009d, 1301, 1302, 1303, c009, c00a, c012, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0012, 0023, 002b, 002d, 0033, ff01
Signature algorithms0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203
JA4_rt13d191100_000a,002f,0035,009c,009d,1301,1302,1303,c009,c00a,c012,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0023,002b,002d,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203
JA4_o (sample)t13d191100_f2ce2cda000b_94ee01060b23
JA4_ro (sample)t13d191100_cca8,cca9,c02f,c030,c02b,c02c,c013,c009,c014,c00a,009c,009d,002f,0035,c012,000a,1303,1301,1302_0000,0005,000a,000b,0023,000d,ff01,0012,002b,0033,002d_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203

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
ge11nn020000_818f42cc3fd7_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.1.0, php-guzzle 8.2.0, php-guzzle 8.0.2, +7 more.The fingerprint page shows the full measured match list. More on the catalog.22
ge11nn020000_3ed38b250d3d_000000000000_0000000000002

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:mss*44,7:mss,nop,nop,sok,nop,ws:df,id+:08
6:47+17:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:04
4:46+18:0:1460:mss*44,7:mss,nop,nop,sok,nop,ws:df,id+:04
6:44+20:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:03
6:46+18:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:03
6:43+21:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-1-4-1-3_1460_711
64800_2-1-1-4-1-3_1440_711

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.134 Safari/537.3624

Country

fingerprintco-occurrences
DE · Germany24

Network (ASN)

fingerprintco-occurrences
AS12816 · Leibniz-Rechenzentrum24