For checking indexing status, click in the search pane to enable Search Tools tab, now from Options group, under Search Tools options, click Indexing Status.
Get a Google Search Console Account and a Google Analytics account. Submit your site here. You can check Crawl Stats in Google Search Console to see how frequently Google is crawling your pages.
Google Search Console also allows you to see exactly how many pages have been indexed by Google.
Image result for How do I know Index Status?
For checking indexing status, click in the search pane to enable Search Tools tab, now from Options group, under Search Tools options, click Indexing Status.