If your web content is not indexed by Google, it cannot appear on a Search Engine Results Page (SERP) when users search in Google. Although search engines use advanced technology to automatically find, crawl, and index your web content, there are extra steps you can take to ensure your content is indexed properly.
How do I know if my website is indexed?
The easiest way to see if your website is in the Google index is to search Google for "site:yourwebsite.com". The search results should contain all your web content that you expect to be indexed.
For more advanced insight into how Google has indexed your website, use Google Search Console.
Can I make Google index my website faster?
If you recently added or made changes to a page on your site, you can ask Google to (re)index it.
More about Google search index