Meta descriptions are HTML and XHTML attributes that provide brief explanations of your page on search engine. Meta descriptions are commonly used on search engine result pages to display preview a small piece for a given page. While the perceived (and real) importance of Meta data has under value, Meta is still important for SEO ranking. Meta description means, how to view your site’s Meta description, and what impacts on visitors. These short paragraphs that describe the content what the searcher want to view their search result page. Every website has unique Meta description if it match to any other page description it should be rejected. The description is must be between 150-160 words.