What is a URL ?
This is the Uniform Resource Locator (URL) of the web page you are looking at right now. A URL can be thought of as the “address” of a web page and is sometimes referred to informally as a “web address.” URLs are used to write links linking one page to another; for an example, see the HTML entry. A URL is made up of several parts. The first part is the protocol, which tells the web browser what sort of server it will be talking to in order to fetch the URL. In this example, the protocol is http. The remaining parts vary depending on the protocol, but the vast majority of URLs you will encounter use the http protocol; exceptions include file URLs, which link to local files on your own hard drive, ftp URLs, which work just like http URLs but link to things on FTP servers rather than web servers, and mailto URLs, which can be used to invite a user to write an email message to a particular email address. The second part of the example URL above is the fully qualified domain name of the web
