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 11,153 websites that are Detectizr Customers. We know of 4,267 live websites using Detectizr and an additional 6,886 sites that used Detectizr historically and 1,622 websites in the United States.
Get a list of 11,153 websites using Detectizr which includes location information, hosting data, contact details, 4,267 currently live websites and an additional 10,950 domains that redirect to sites in this list. 6,886 sites that used this technology previously and 1,622 websites in the United States currently using Detectizr.