Uniform Resource Locators (URLs)

The purpose of the URL is to provide the exact location of a specific file on the Internet. There are many HTML elements that require you to specify a URL; these elements allow you to reference:

• Images
• Hyperlinks
• Cascading Style Sheets

A URL consists of two main pieces:

• The protocol and IP address (or domain name) of the web server
• The file name (including directory and sub-directory information)

A URL might look like:

http://www.grantcom.us/IMAGES/logo.gif

The first piece of the URL (highlighted) is the http protocol and the IP address (domain name), which defines how the Internet reaches a specific computer:

http://www.grantcom.us/IMAGES/logo.gif

We covered the IP addressing topic earlier in this course (see Connection Protocol).

The next page will cover the second piece of the URL...

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