If you haven't submitted the url of your website to google search or other search engines then that's one way to speed up the initial indexing of your website.
If you want your website crawled and indexed more often you can do so by constantly adding new content to your website.
The more often you add content to your website then the more often google search and other search engine bots will visit and crawl your website and the faster you'll get your content indexed in the search engines.
It still can take 90 to 180 days before google search or other search engines decide to rank your content.