What is meta tag ? – Meta description
Meta tag is short description about your post contents or you can say that it is the short summary of your written content. Meta description may be used as snippets preview by google while displaying search results. A page’s description meta tag might be a sentence or two or a short paragraph.
Write a meta description that would both inform and interest users if they saw your description meta tag as a snippet in a search result and avoid writing a description meta tag that has no relation to the content. Avoid filling the description with only keywords and copying and pasting the entire content of the document into the description meta tag.
Try to give different description meta tag for each page, Avoid using a single description meta tag across all of your site’s pages or a large group of pages.