WURFL.js is a JavaScript file that provides information about the device that is accesing your page. Now known as wurfl.io
http://wurfljs.com/
JavaScript Libraries and Functions · Compatibility
Get access to data on 24,019 websites that are WURFL js Customers. We know of 7,868 live websites using WURFL js and an additional 16,151 sites that used WURFL js historically and 3,509 websites in the United States.
Get a list of 24,019 websites using WURFL js which includes location information, hosting data, contact details, 7,868 currently live websites and an additional 20,098 domains that redirect to sites in this list. 16,151 sites that used this technology previously and 3,509 websites in the United States currently using WURFL js.
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