RequireJS is a JavaScript file and module loader.
http://requirejs.org/
JavaScript Libraries and Functions
Get access to data on 8,808,715 websites that are RequireJS Customers. We know of 2,000,001 live websites using RequireJS and an additional 6,808,714 sites that used RequireJS historically and 1,385,100 websites in the United States.
Get a list of 8,808,715 websites using RequireJS which includes location information, hosting data, contact details, 2,000,001 currently live websites and an additional 1,177,933 domains that redirect to sites in this list. 6,808,714 sites that used this technology previously and 1,385,100 websites in the United States currently using RequireJS.