Explain about Google fetch in detail....?

Explain about Google fetch in detail....?

The Fetch as Google tool enables you to test how Google crawls or renders a URL on your site. You can use Fetch as Google to see whether Googlebot can access a page on your site, how it renders the page, and whether any page resources (such as images or scripts) are blocked to Googlebot.

We can make Google crawler to index our particular page by submitting that page through fetch as Google. Whatever the changes we made in web pages, we have to submit that page URL to fetch as Google.