How to Create a Web Application:
A website, or web site, is a central location of various web pages that are all related and can be accessed by visiting the home page using a browser.There is a minor difference between web Application and website. Unlike web application when we create website it ask where we want to deploy it.
When we execute HTML page a website is created by default and a port is assigned to it.
Each web page has its own Meta tag which describes that page. It is used by search engines /crawlers from which crawler knows what page is about. It contains keywords such as author.
Schema are HTML tags that webmasters can use to markup their pages in ways recognized by major search providers. It is also used by search engines. Schema is same for one category of pages.