Meta Tags Resources

The term meta simply put means information about information. In database context, often called meta data, it is understood as "information about data". In the Web world, we have special HTML tags called meta tags ( <meta.../> ) that translates as "information about this web page". META tags provide search engines or bots primarily with information about the information that resides on  web page or resource.

W3Schools.com is a great resource for HTML META tags.