what is meta tag in seo ?

The meta tag is the single most essential "on page" element in revealing to a search engine what your page is all about. Yes, the title tag is unbelievably important.

Meta tags are information inserted in to the header section (in the HTML) of a webpage that communicates the story and purpose of that page to search engines.
<title> What are SEO Meta Tags and How do They Work? </title>
<meta name="description" content="Meta tags are typically at the core of learning SEO and how it works. Meta tags alone will not get your website on top ranking results...Read more" />
<meta name="keywords" content="seo meta tags, what are seo meta tags, how do meta tags work" />

Quote from: Roopa on January 21, 2015, 09:26:29 PM
Meta tags are information inserted in to the header section (in the HTML) of a webpage that communicates the story and purpose of that page to search engines.
<title> What are SEO Meta Tags and How do They Work? </title>
<meta name="description" content="Meta tags are typically at the core of learning SEO and how it works. Meta tags alone will not get your website on top ranking results...Read more" />
<meta name="keywords" content="seo meta tags, what are seo meta tags, how do meta tags work" />

I totally agree with him nice post

Meta tag include the title tag, keyword tag and description, which is very important for any websites. Because it is crawled by the Google Crawler.

Meta Tags is most important part of On Page SEO, that helps to searching any website information.

Some search engines may display the meta description as a part of the search results, but the meta keyword tags should not appear in search results. The general consensus among SEO experts is that metatags are dead. Even so, many of these same experts continue to use metatags in their own sites.