TLS ClientHello (JA4)

t13d131100_f57a46bbacb6_ab7e3b40a677

first seen 2026-06-11 02:18 · last seen 2026-09-16 08:33 · JSON

Last 7 days (87 observations)

Distinct clients per day (last 30 days, peak 19/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	`13`
Extension count	`11`
ALPN	`00`
Ciphers	`1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9`
Extensions	`0005, 000a, 000b, 000d, 0012, 0017, 002b, 0032, 0033, ff01`
Signature algorithms	`0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603`
JA4_r	`t13d131100_1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,002b,0032,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603`
JA4_o (sample)	`t13d131100_45672f90a73c_0a6381ba93d6`
JA4_ro (sample)	`t13d131100_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,1301,1302,1303_0000,000b,ff01,0017,0012,0005,000a,000d,0032,002b,0033_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603`

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
`ge11nn14enus_a86c1525b786_000000000000_000000000000`	3027
`ge11nn030000_cd680697de12_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.5, powershell 7.6.4, go-net/http 1.27.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.	221
`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.	118
`ge11nn040000_8391bea91fb6_000000000000_000000000000`	116
`ge11nr030000_cd680697de12_000000000000_000000000000`	102
`ge11nn030000_b0d6a43aa599_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: powershell 5.1.26100.33296, powershell 5.1.26100.33158, powershell 5.1.26100.32995.The fingerprint page shows the full measured match list. More on the catalog.	56
`ge11nr030000_0db47b7d240d_000000000000_000000000000`	53
`ge11nr040000_8391bea91fb6_000000000000_000000000000`	49
`ge11nr09enus_ac151016e6e5_000000000000_000000000000`	46
`ge11nn030000_0db47b7d240d_000000000000_000000000000`	44

TCP SYN (p0f)

fingerprint	co-occurrences
`4:44+20:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	1517
`4:43+21:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	1405
`4:58+6:0:1420:mss*46,7:mss,sok,ts,nop,ws:df,id+:0`	396
`4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	100
`4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	68
`4:116+12:0:1160:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	58
`4:115+13:0:1160:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	51
`4:44+20:0:1440:mss*29,7:mss,sok,ts,nop,ws:df,id+:0`	31
`4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0`	29
`4:46+18:0:1440:mss*29,7:mss,sok,ts,nop,ws:df,id+:0`	24

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-4-8-1-3_1460_7`	3192
`65320_2-4-8-1-3_1420_7`	387
`65535_2-1-3-1-1-4_1160_8`	116
`42340_2-4-8-1-3_1440_7`	66
`64800_2-4-8-1-3_1440_7`	44
`42340_2-4-8-1-3_1460_9`	37
`42340_2-4-8-1-3_1460_12`	28
`64860_2-4-8-1-3_1380_7`	27
`62727_2-4-8-1-3_1460_7`	23
`64240_2-4-8-1-3_1460_9`	21

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36`	3050
`Hello from Palo Alto Networks, find out more about our scans in https://docs-cortex.paloaltonetworks.com/r/1/Cortex-Xpanse/Scanning-activity`	349
`Go-http-client/1.1`	293
`DuckDuckBot/1.1; (+http://duckduckgo.com/duckduckbot.html)`	85
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36`	54
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36`	33
`Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Firefox/121.0`	18
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/120.0.0.0`	18
`Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 Chrome/120.0.0.0`	18
`curl/8.6.0`	16

Country

fingerprint	co-occurrences
`ZA` · South Africa	3027
`US` · United States	399
`DE` · Germany	199
`NL` · Netherlands	194
`BE` · Belgium	89
`BR` · Brazil	62
`TW` · Taiwan	59
`IE` · Ireland	49
`SE` · Sweden	33
`FR` · France	32

Network (ASN)

fingerprint	co-occurrences
`AS37611` · AFRIHOST SP (PTY) LTD	3027
`AS396982` · Google LLC	424
`AS8075` · Microsoft Corporation	144
`AS212238` · Datacamp Limited	134
`AS14618` · Amazon.com, Inc.	38
`AS48090` · TECHOFF SRV LIMITED	37
`AS51396` · Pfcloud UG	26
`AS62651` · Strong Technology, LLC.	25
`AS9009` · M247 Europe SRL	22
`AS16276` · OVH SAS	22