If you use Yoast SEO for Search Engine Optimisation (SEO), then you will soon be able to experience live indexing. This means that your published, updated or deleted posts will be shown nearly instantaneously in Google and Bing. The new tools work by sending a message with post update information to Bing, which will check those changes within 1 minute or receiving the message. Yoast have said that the new update will be released at the end of March 2019. More here.