However, there's an easy way to have your website indexed in Google's search results in less than a minute. This technique works only for your personal site and not for the external pages.
Don't worry, this is not a black hat SEO technique, but an approach approved by Google.
This method involves adding your website to Signup or Login to view earning guides for mobile apps and websites. (formerly known as Google Webmaster Tools), the free service offered by Google to help website owners to improve their SEO and see how their site perform in the results of the search engines.
If you haven't already added your site already to Google Search Console, you'll have to do that first.
Then, go to Crawl-->Fetch As Google menu.
In the form at the top of the page, enter the URL of the page you want Google to index, then click on "Fetch" button from the right side of the input form.
The page URL will then appear below in the list of pages to be indexed.
Click on "Request Indexing" button next to the URL.
Check the captcha verification and select Crawl only this URL from the two options below the captcha.
If everything is OK, you should see "URL Submitted to Index" message.
Now, open an incognito (private) browsing tab, access Google.com and type the following in the search box:
Replace "theurlofyourpage.com/page" with the URL of the page you want in Google's index.
You might have to reload the page a few times until the page will appear.