Web Applications ASP.NET Web Applications come in three flavors, depending on their scope: an internet web site is public; an extranet is semi private and requires a userid and password to get in; and an intranet is private and local. Internet Web Site A public web application as in E-Commerce. ptii-011 Extranet Web Site A semi-private internet application restricted with to the audience a company chooses. Normally reserved for trading partners and suppliers. ptii-012 Intranet Web Site A private web site used in the premises of the corporation only. ptii-013