TLS ClientHello (JA4)

t13d131100_f57a46bbacb6_f50d94e863eb

first seen 2026-08-26 04:25 · last seen 2026-11-02 01:35 · JSON

Matches controlled captures

Known clients driven through this site's own edge produced this exact fingerprint — measured truth, not inference. catalog →

go-net/http 1.27.3 · Alpine Linux 3.24.3 · via no-alpn · container — 2 sessions, last 2026-10-31 23:56 controlled
go-net/http 1.27.3 · Alpine Linux 3.24.2 · via no-alpn · container — 1 session, last 2026-10-20 23:03 controlled
go-net/http 1.27.2 · Alpine Linux 3.24.2 · via no-alpn · container — 1 session, last 2026-10-13 22:57 controlled
go-net/http 1.27.1 · Alpine Linux 3.24.2 · via no-alpn · container — 3 sessions, last 2026-10-06 02:52 controlled
go-net/http 1.27.1 · Alpine Linux 3.24.1 · via no-alpn · container — 1 session, last 2026-09-02 22:05 controlled
go-net/http 1.27.0 · Alpine Linux 3.24.1 · via no-alpn · container — 2 sessions, last 2026-09-01 00:43 controlled

Last 7 days (11 observations)

Distinct clients per day (last 30 days, peak 2/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	`0904, 0905, 0906, 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_0904,0905,0906,0804,0403,0807,0805,0806,0401,0501,0601,0503,0603`
JA4_o (sample)	`t13d131100_45672f90a73c_1c4e93964491`
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_0904,0905,0906,0804,0403,0807,0805,0806,0401,0501,0601,0503,0603`

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
`ge11nr040000_8391bea91fb6_000000000000_000000000000`	13
`ge11nr120000_310be72a5e7f_000000000000_000000000000`	12
`ge11nn040000_e1d2031bdfea_000000000000_000000000000`	10
`ge11nr030000_cd680697de12_000000000000_000000000000`	8
`ge11nr08enus_aea191eebe67_000000000000_000000000000`	7
`ge11nn030000_cd680697de12_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.5, powershell 7.6.4, +11 more.The fingerprint page shows the full measured match list. More on the catalog.	5
`ge11nn040000_8391bea91fb6_000000000000_000000000000`	4
`ge11nn13engb_907d1f6f88cf_000000000000_000000000000`	4
`ge11nn13enus_907d1f6f88cf_000000000000_000000000000`	4
`ge11nn13dede_907d1f6f88cf_000000000000_000000000000`	4

TCP SYN (p0f)

fingerprint	co-occurrences
`4:51+13:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	42
`4:54+10:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	26
`4:53+11:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	17
`4:112+16:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0`	7
`4:51+13:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:0`	7
`4:42+22:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0`	7
`4:55+9:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	6
`4:57+7:0:1420:mss*46,7:mss,sok,ts,nop,ws:df,id+:0`	3
`4:57+7:0:1420:mss*30,7:mss,sok,ts,nop,ws:df,id+:0`	3
`4:48+16:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:0`	3

TCP SYN (JA4T)

fingerprint	co-occurrences
`42340_2-4-8-1-3_1460_9`	91
`42340_2-4-8-1-3_1460_12`	12
`64240_2-1-3-1-1-4_1460_8`	11
`64240_2-4-8-1-3_1460_10`	8
`64240_2-4-8-1-3_1460_7`	5
`65320_2-4-8-1-3_1420_7`	3
`64800_2-4-8-1-3_1440_7`	3
`65280_2-4-8-1-3_1360_7`	3
`42600_2-4-8-1-3_1420_7`	3
`65320_2-4-8-1-3_1420_10`	3

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.15`	12
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36 OPR/111.0.0.0`	9
`Go-http-client/1.1`	8
`Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1`	7
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36`	7
`BarrigazBot/2.0 (+https://barrigaz.com/bot; abuse@barrigaz.com)`	7
`Mozilla/5.0 (X11; Linux x86_64)`	6
`Mozilla/5.0`	5
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36`	5
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36`	5

Country

fingerprint	co-occurrences
`NL` · Netherlands	68
`US` · United States	40
`PL` · Poland	18
`DE` · Germany	14
`SG` · Singapore	7
`CA` · Canada	1
`BR` · Brazil	1
`ID` · Indonesia	1
`SI` · Slovenia	1

Network (ASN)

fingerprint	co-occurrences
`AS48090` · TECHOFF SRV LIMITED	56
`AS150303` · SoloRDP	32
`AS218785` · TC DATACENTER LIMITED	17
`AS396982` · Google LLC	10
`AS197170` · TechTies Inc.	10
`AS24940` · Hetzner Online GmbH	7
`AS14956` · RouterHosting LLC	5
`AS197769` · VPS Dedicated LLC	3
`AS8075` · Microsoft Corporation	2
`AS39832` · Opera Norway AS	2

TLS supported groups

fingerprint	co-occurrences
`11ec,11eb,11ed,001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog.	26
`11ec,001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 158.0.1, firefox 157.0, firefox 157.0.1, +5 more.The fingerprint page shows the full measured match list. More on the catalog.	4