Uses of meta information

Meta information (information about information) is a series of tags in the header section of the HTML file which provides information about the file. The most common subjects for meta information are a brief description of the page and a set of keywords. These two pieces of information are used by search engines. The keyword information is used to determine whether the page should show up on a search, and the description is used when the page is shown in the list of pages which match the search. Other information specified in meta tags is generally only found if people look at the source code of the page themselves.