URL: Uniform Research Locator
Scheme server/root level path/directory file name
The site name is not case sensitive, however, depending on the server, the path and filename's ARE case sensitive. It's recommended to keep your path and filenames lowercase for ease of use.
Types of schemes:
HTTP:// HyperText Transfer Protocol (the default in most browsers)
FTP:// File Transfer Protocol used for downloading files
Mailto: email - mailto:email@example.com
file:/// file on desktop or computer
Absolute path = entire path name. Example: http://www.google.com
Absolute paths are used when linking to a site other than the one you're currently on.
Relative path = the path of the file relative to the current page. Example: /sports/soccer.html
Relative paths are used when linking to pages, images, css files... etc within the site your're currently on.
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