jQBrowser is a plugin for the jQuery JavaScript library that replaces the $.browser object with a more robust and extensive detection.
http://davecardwell.co.uk/javascript/jquery/plugins/jquery-browserdetect/
JavaScript Libraries and Functions · Compatibility
Get access to data on 756,209 websites that are jQBrowser Customers. We know of 293,986 live websites using jQBrowser and an additional 462,223 sites that used jQBrowser historically and 227,116 websites in the United States.
Get a list of 756,209 websites using jQBrowser which includes location information, hosting data, contact details, 293,986 currently live websites and an additional 75,364 domains that redirect to sites in this list. 462,223 sites that used this technology previously and 227,116 websites in the United States currently using jQBrowser.