I have seen during this years in forums and websites huge guides on how to index a page or a domain fast in Google and the truth is its very simple:

  1. You type in Google search “Submit a url to google” and google will show you the following result :

2) After this you fill in the box the Domain or URL you want to get indexed and of course fill in the Recaptcha.

After 30 seconds or so you can type on Google’s search box :  site:your-domain-or-url.com and you will see it’s already indexed.

If not, wait another 30 seconds.

If it’s still not indexed you better go check Google’s Search console and see if the domain or URL is in manually penalized.

Hope that this fast guide on how to index a url or domain in Google