Detectizr is a Modernizr extension to detect device, browser, operating system and screen.
https://github.com/barisaydinoglu/Detectizr
JavaScript Libraries and Functions · Compatibility
Get access to data on 11,422 websites that are Detectizr Customers. We know of 3,737 live websites using Detectizr and an additional 7,685 sites that used Detectizr historically and 1,387 websites in the United States.
Get a list of 11,422 websites using Detectizr which includes location information, hosting data, contact details, 3,737 currently live websites and an additional 3,503 domains that redirect to sites in this list. 7,685 sites that used this technology previously and 1,387 websites in the United States currently using Detectizr.