Dot com may refer to:.com (short for commercial), the generic top-level domain used on the Internet's Domain Name Systemdot-com company, a company which does most of its business on the Internet.COM (short for command), a file extension associated with DOS executable fileDOTCOM (368266), a short code phone number used to access .com domain names by cell phone text messaging"Dot Com", a character played by Kevin Brown on 30 RockDot-com bubble (also known as the Dot-com era), an economic period fr… (More on Dot-com)