The set of tags placed in the header of the HTML code that provides information to the search engine about the contents in a website design or article is called a Meta Tag. The use of Meta Tags in making a site attractive to the web spiders can’t be over emphasized. The spiders are designed to award points based on the keyword search and meta tags to each website. 

Meta tags can be used to inform the spiders the content of the written matter or that of the website. Used in this way the description that can be obtained leads to easier evaluation thematically by allowing it to analyze written matter as well as in the links that the bots pass on to other spiders that act as data collectors as well as analyzers. The description or summary, if you may, should not exceed 25-30 words. Use of all main keywords used in your article should be made use of in the description meta tag. The title as well as content must closely match the description meta tags. 

Keyword Meta Tags 

Keyword meta tags help one to place a list of targeted words in your content or article. Similar to the header meta tags, keywords can emphasize on the content and relevant words used to indicate closest meaning without really spamming the list can create a good reputation with most sites as well as the readers. Irrelevant words that do not deploy specific meaning to content should be avoided. If possible use of keywords that can also be found in the body of the HTML page should be used, if possible to deliver the true meaning.