If you set up your Quick Shopping Cart store as a dedicated domain, your customers access your store by entering your domain name in the address bar of their browser (for example, www.best-widgets.com).
If you set up your Quick Shopping Cart store as a subdomain, you can add a link on your website that leads your customers to the subdomain for your store (for example, www.shop.best-widgets.com). Your customers can also access your store by entering the URL of the store in the address bar of their browser.