Ranking at the top of the results in every search engine is a dream of every SEO practitioner. Meta tags are easiest and most convenient ways of describing websites, title, description, keywords and other details in machine readable format.
What Are Meta Tags?
Meta tags provide Meta Data about the HTML document. They are special tags that provide information about the website. Meta tags exist in HTML in  section  and hence are only visible and purposeful for search engines. Meta tags are great ways to provide information about their sites to search engines.