TLS ClientHello (JA4)

t13d191100_9dc949149365_be53661681a4

first seen 2026-06-20 03:20 · last seen 2026-10-26 11:08 · JSON

Last 7 days (1 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

Protocol	`t (TLS over TCP)`
TLS version	`13`
SNI	`d (domain)`
Cipher count	`19`
Extension count	`11`
ALPN	`00`
Ciphers	`000a, 002f, 0035, 009c, 009d, 1301, 1302, 1303, c009, c00a, c012, c013, c014, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`0005, 000a, 000b, 000d, 0012, 0023, 002b, 002d, 0033, ff01`
Signature algorithms	`0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203`
JA4_r	`t13d191100_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)

fingerprint	co-occurrences
`ge11nn020000_818f42cc3fd7_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.2.0, php-guzzle 8.1.0, php-guzzle 8.0.2, +13 more.The fingerprint page shows the full measured match list. More on the catalog.	34
`ge11nn020000_3ed38b250d3d_000000000000_000000000000`	2

TCP SYN (p0f)

fingerprint	co-occurrences
`4:47+17:0:1460:mss*44,7:mss,nop,nop,sok,nop,ws:df,id+:0`	11
`6:47+17:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	7
`4:46+18:0:1460:mss*44,7:mss,nop,nop,sok,nop,ws:df,id+:0`	7
`6:46+18:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	5
`6:44+20:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	3
`6:43+21:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	2
`6:45+19:0:1440:mss*45,7:mss,nop,nop,sok,nop,ws:flow:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-1-1-4-1-3_1460_7`	17
`64800_2-1-1-4-1-3_1440_7`	17

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.134 Safari/537.36`	36

Country

fingerprint	co-occurrences
`DE` · Germany	36

Network (ASN)

fingerprint	co-occurrences
`AS12816` · Leibniz-Rechenzentrum	36

TLS supported groups

fingerprint	co-occurrences
`001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.	4