On the web, the footnote could be turned into a link. When the reader clicks with their mouse on the footnote, the corresponding article would appear on the computer screen. To the WWW user, links appear as underlined or highlighted text. When the reader selects a link with a mouse click, the corresponding document will appear on the computer screen. Every file on the Internet has an address.
Protocol is the method a file is transferred to a computer.
In the above example, the words link text would appear highlighted in the web document. This link method is the safest to use because the complete URL is specified. The relative link assumes the hostname.domain of the remote file to be the same as the hostname.domain of the current file. The anchor tag comes in handy when you would like to make links to specific sections within a document. Anchors require two sets of tags.