Meta Keywords and Meta Description

Meta keywords and meta description, as the name implies, are to be found in the <META> tag of a HTML page. Once meta keywords and meta descriptions were the single most important criterion for determining relevance of a page but now search engines employ alternative mechanisms for determining relevancy, so you can safely skip listing keywords and description in Meta tags (unless you want to add there instructions for the spider what to index and what not but apart from that meta tags are not very useful anymore).