a meta tag hidden in the HTML that lists keywords relevant to the page's content in order to describe the content of a page to a search engine spider or other bot . Because search engine spammers have abused this tag so much, nearly all of the major search engines ignore this tag completely. Of the major search engines, only Inktomi still pays any attention to the meta keywords tag.
It is a common misleading that the use of Mata Tags ensures good search engine positioning. Nowadays, the 'Keywords' Meta Tag is a minor part of most search engine algorithms - some, such as Google, do not even consider it at all.
Most search engines use the 'Meta Description' html tag as a short description of the page when it is presented in a search results page. It is, therefore, important to ensure that this Meta Tag contains a readable, punchy, and interesting description of the pages content - this can give a quick boost to the click through rates from listings in search results.