Meta tags, found in an HTML document's source code, do everything from describing a site's contents to defining the type of content that the page displays.

Meta tags are hidden on the page, but they, as well as all the HTML code on a page, can be viewed by selecting View/Source or View/Page Source from the browser menu.

You add keywords to HTML pages by including the Meta Keywords tag inside the Head section of the code. You then insert a list of keywords relevant to your business in the Meta tag.