User-Agent

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0) Gecko/20100101 Firefox/150.0

first seen 2026-06-11 12:43 · last seen 2026-09-19 00:54 · JSON

Decomposed attributes

Browser / client	`Firefox 150.0`
Operating system	`Windows 10.0`
Device class	`desktop`
Note	`inferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above`

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.

TLS ClientHello (JA4)

fingerprint	co-occurrences
`t13d131000_f57a46bbacb6_e7c285222651` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.	2
`t13d1714h1_5b57614c22b0_43ade6aba3df`	2
`t13d131200_f57a46bbacb6_9249cab70c77`	2
`t13i130900_f57a46bbacb6_e7c285222651`	1
`t13d1617h2_86a278354501_3cbfd9057e0d` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.3, +10 more.The fingerprint page shows the full measured match list. More on the catalog.	1

HTTP request (JA4H)

fingerprint	co-occurrences
`ge11nn05enus_813e32c09d15_000000000000_000000000000`	3
`ge11nr040000_e1d2031bdfea_000000000000_000000000000`	1
`ge20nn11enus_3901d4197baf_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 153.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.	1
`ge11nr040000_e046cd015f21_000000000000_000000000000`	1
`ge11nr11enus_2682406dd025_000000000000_000000000000`	1
`ge11nr05enus_f3bb7aa45ec4_000000000000_000000000000`	1

HTTP/2 frames (Akamai)

fingerprint	co-occurrences
`1:65536;2:0;4:131072;5:16384\|12517377\|3:0:0:42\|m,p,a,s` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.	1

TCP SYN (p0f)

fingerprint	co-occurrences
`4:52+12:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	2
`4:49+15:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0`	1
`4:48+16:0:1460:65535,10:mss,sok,ts,nop,ws:df,id+:0`	1
`6:51+13:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:0`	1
`4:58+6:0:1420:mss*30,9:mss,sok,ts,nop,ws:df,id+:0`	1
`6:53+11:0:1440:mss*30,9:mss,sok,ts,nop,ws:flow:0`	1
`4:50+14:0:1300:43080,12:mss,sok,ts,nop,ws:df,id+:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-4-8-1-3_1440_7`	1
`65535_2-4-8-1-3_1460_10`	1
`43200_2-4-8-1-3_1440_9`	1
`42600_2-4-8-1-3_1420_9`	1
`43080_2-4-8-1-3_1300_12`	1

Country

fingerprint	co-occurrences
`US` · United States	6
`DE` · Germany	1
`JP` · Japan	1

Network (ASN)

fingerprint	co-occurrences
`AS22295` · Advin Services LLC	4
`AS396982` · Google LLC	1
`AS16276` · OVH SAS	1
`AS701` · Verizon Business	1
`AS28753` · Leaseweb Deutschland GmbH	1