@rootAug 28.2017 — #You search for something within a page thats in a sub folder to the root / parent directory, then if you get a result, you know the site has been indexed.
This is something you can easily find out by searching for it with your search engine.
@RH-CalvinAug 30.2017 — #Indexed webpages can be checked by typing SITE:URL in the Google search console. The result will display only the indexed webpages for your website.
@JosephDevinAug 30.2017 — #The finest way to check your Google Index Status by using Google Webmaster Tools as you can get this information straight out the box. In order to do this you must have added your website in the dashboard and verified the ownership.