How do I know my website is indexed by Google?

A page visited by Googlebot, analyzed in terms of content and meaning and saved in the Google index is indexed by Google. Indexed pages can be shown in Google Search results. While most pages are crawled before being indexed, Google can index pages without accessing their content. If your page is not indexed, you can request it to be indexed using your Search Console account.

When logging into Search Console, you must specify the URL you want indexed in the URL check section. You can then click the submit request for indexing button to have the search engine bots crawl your site. Here you have to wait a while after the bots have been scanned to be listed on the search results page.