Dot com may refer to: .com (short for commercial), the generic top-level domain used on the Internet's Domain Name System dot-com company, a company which does most of its business on the Internet .COM (short for command), a file extension associated with DOS executable file DOTCOM (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 Rock Dot-com bubble (also known as the Dot-com era), an economi… (More on Dot-com)