A URL (Uniform Resource Locator) is the an address on the Internet which identifies the location of a file on the Internet. A URL is made up of:

• the protocol,
  • http://www.example.com/folder/file.txt
• the domain name or computer name,
  • http://www.example.com/folder/file.txt
• the file's directory(ies),
  • http://www.example.com/folder/file.txt
• and the file's name.
  • http://www.example.com/folder/file.txt