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 777,748 websites that are jQBrowser Customers. We know of 183,112 live websites using jQBrowser and an additional 594,636 sites that used jQBrowser historically and 141,099 websites in the United States.
Get a list of 777,748 websites using jQBrowser which includes location information, hosting data, contact details, 183,112 currently live websites and an additional 47,633 domains that redirect to sites in this list. 594,636 sites that used this technology previously and 141,099 websites in the United States currently using jQBrowser.