A meta tag is a line of HTML coding that contains metadata about a webpage.It won’t be seen by the website viewer, unless they are viewing your source code. There are two common types of meta tags — meta description tags and meta keywords tags. Both types of tags are located in the heading section of your HTML code and usually below the title. You might have the following heading for your webpage: <HEAD> <TITLE>How to Create a Meta Tag</TITLE> <META name =“description†content=â€Everything you want to know about Meta Tagsâ€> <META name =â€keywords†content=â€meta, meta tags, meta tag, HTML and meta tags, tags, SEOâ€> </HEAD>
Meta Tags are the HTML Tags contain Meta Data. From those Meta Data Search Engines are getting information about teh website. Those are very much useful for the OnPage SEO.
Its purpose for ON Pages SEO .Fist site looking in good with meta tag like title,description and keywords.
For different website software(Joomla, Wordpress..) are plugins available which makes meta adding easier for users.