Google's index is a list of all the web pages that the search engine knows about. If Google doesn't index your site, your site won't appear in Google's search results.
It's like you wrote a book but no bookstore or library stocks it. No one will find the book. They may not even know it exists. If a reader is looking for that book, they will have a hard time finding it.
Why is website indexing important?
Unindexed websites are not in Google's jamaica mobile database database. Therefore, the search engine cannot display these websites in its search engine results pages SERPs.
To index a site, Google's web crawler Googlebot needs to "crawl" the site.
Here is a quick overview of the search engine process:
Crawling : Search engine robots crawl a website to determine if it is worth indexing. Web spiders, or "Googlebot," are always crawling the web, following links on existing pages to find new content.
Indexing : A search engine adds a website to its database in Google's case, its "index".
Ranking : Search engines rank websites based on metrics like relevance and user-friendliness.
Indexing simply means that the site is stored in Google's database. It does not mean that it will appear at the top of the SERPs. Indexing is controlled by predetermined algorithms that take into account factors such as web user demand and quality checks. You can influence indexing by managing how spiders discover your online content.