TLS ClientHello (JA4)

t13d201100_2b729b4bf6f3_36bf25f296df

first seen 2026-06-11 00:28 · last seen 2026-09-15 01:39 · JSON

Inconsistencies

User-Agents observed with this fingerprint that contradict what it proves at the wire. all inconsistencies →

fingerprint User-Agent claims wire shows confidence seen first seen last seen

t13d201100_2b729b4bf6f3_36bf25f296df

Mozilla/5.0 (Windows NT 10.0; Microsoft Windows …

User-Agent claims PowerShell 7.6.3

TLS cipher list matches no measured PowerShell capture

The offered TLS cipher suites match no controlled capture of PowerShell. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-Agent	Mozilla/5.0 (Windows NT 10.0; Microsoft Windows 10.0.26200; en-150) PowerShell/7.6.3
Claimed version	7.6.3
Measured versions	7.6.4, 7.6.3, 7.6.5, 5.1.26100.33296, 5.1.26100.32995, 5.1.26100.33158
Layer	cipher suites differ
JA4 label	unlabeled

medium

2026-07-19

t13d201100_2b729b4bf6f3_36bf25f296df

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW…

User-Agent claims Edge 149.0.0.0

TLS cipher list matches no measured Edge capture

The offered TLS cipher suites match no controlled capture of Edge. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-Agent	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36 Edg/149.0.0.0
Claimed version	149.0.0.0
Measured versions	152.0.4191.66, 151.0.4129.72, 149.0.4022.98, 151.0.4129.101, 150.0.4078.65, 149.0.4022.69, 149.0.4022.52, 150.0.4078.99, 149.0.4022.80, 151.0.4129.93, 151.0.4129.59
Layer	cipher suites differ
JA4 label	unlabeled

medium

2026-08-08

2026-08-23

t13d201100_2b729b4bf6f3_36bf25f296df

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv…

User-Agent claims Firefox 133.0

TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-Agent	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0
Claimed version	133.0
Measured versions	146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layer	cipher suites differ
JA4 label	unlabeled

medium

2026-06-28

Last 7 days (14 observations)

Distinct clients per day (last 30 days, peak 20/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	`20`
Extension count	`11`
ALPN	`00`
Ciphers	`002f, 0035, 003c, 003d, 009c, 009d, 1301, 1302, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c, c02f, c030`
Extensions	`000a, 000b, 000d, 0017, 0023, 002b, 002d, 0031, 0033, ff01`
Signature algorithms	`0804, 0805, 0806, 0401, 0501, 0201, 0403, 0503, 0203, 0202, 0601, 0603`
JA4_r	`t13d201100_002f,0035,003c,003d,009c,009d,1301,1302,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030_000a,000b,000d,0017,0023,002b,002d,0031,0033,ff01_0804,0805,0806,0401,0501,0201,0403,0503,0203,0202,0601,0603`
JA4_o (sample)	`t13d201100_1079d97b4c9b_05ede352cda5`
JA4_ro (sample)	`t13d201100_1302,1301,c02c,c02b,c030,c02f,c024,c023,c028,c027,c00a,c009,c014,c013,009d,009c,003d,003c,0035,002f_0000,002b,000d,0023,000a,000b,0033,0031,0017,ff01,002d_0804,0805,0806,0401,0501,0201,0403,0503,0203,0202,0601,0603`

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
`ge11nn16enus_a27292610b04_000000000000_000000000000`	540
`ge11nn010000_4a823118b9ba_000000000000_000000000000`	131
`ge11nn010000_4740ae6347b0_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.0, rust-hyper 1.11.1, rust-hyper 1.10.1.The fingerprint page shows the full measured match list. More on the catalog.	64
`ge11nn020000_3ed38b250d3d_000000000000_000000000000`	14
`ge11nn15enus_35372a7bda31_000000000000_000000000000`	13
`ge11nn16enus_35f3f038964b_000000000000_000000000000`	12
`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.	8
`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.	4
`he11nn020000_d5c75abc5c2c_000000000000_000000000000`	4
`ge11nr13enus_8d01c975e397_000000000000_000000000000`	4

TCP SYN (p0f)

fingerprint	co-occurrences
`4:111+17:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	124
`4:109+19:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	77
`4:113+15:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	76
`4:104+24:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	66
`4:101+27:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	63
`4:110+18:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	53
`4:112+16:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	43
`4:108+20:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	41
`4:103+25:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	34
`4:102+26:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0`	31

TCP SYN (JA4T)

fingerprint	co-occurrences
`65535_2-1-3-1-1-4_1440_8`	668
`65535_2-1-3-1-1-4_1460_8`	13
`64240_2-4-8-1-3_1460_10`	6
`65535_2-1-3-1-1-4_1436_8`	6
`64240_2-1-3-1-1-4_1440_8`	2
`62587_2-4-8-1-3_1440_7`	2
`65535_2-1-3-1-1-4_1380_8`	1
`65535_2-4-8-1-3_1460_10`	1
`65535_2-1-3-4-8_1452_8`	1
`65535_2-1-3-1-1-4_8960_8`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36`	565
`Mozilla/5.0 (Windows NT 10.0; Microsoft Windows 10.0.26200; en-150) PowerShell/7.6.3`	4
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36`	3
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36 Edg/122.0.0.0`	3
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36 Edg/149.0.0.0`	3
`Mozilla/5.0 (Windows NT; Windows NT 10.0; de-DE) WindowsPowerShell/5.1.26100.9168`	3
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36`	2
`Mozilla/5.0 (Windows NT; Windows NT 10.0; zh-CN) WindowsPowerShell/5.1.26100.8972`	2
`Mozilla/5.0`	1
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36`	1

Country

fingerprint	co-occurrences
`US` · United States	145
`CA` · Canada	138
`IT` · Italy	60
`CH` · Switzerland	57
`BR` · Brazil	50
`MX` · Mexico	46
`PL` · Poland	41
`DE` · Germany	32
`IN` · India	32
`NO` · Norway	31

Network (ASN)

fingerprint	co-occurrences
`AS8075` · Microsoft Corporation	759
`AS3215` · Orange S.A.	14
`AS202412` · Omegatech LTD	8
`AS3209` · Vodafone GmbH	4
`AS34533` · JSC "ER-Telecom Holding"	4
`AS62240` · Clouvider	3
`AS137409` · GSL Networks Pty LTD	3
`AS16509` · Amazon.com, Inc.	2
`AS16276` · OVH SAS	2
`AS8560` · IONOS SE	2