How To Instantly Index Your Blog Post On Google
Some of the algorithms search engine use to index site is how often it is updated, if you update your site frequently google bot will crawl your site more frequently and if you are the type that does not update your blog frequently google will reduce the crawl rate but there is a quick work around for it.
Follow the steps to get your post indexed almost immediately after publish
Login to your Google search console admin panel and navigate to inspect any URL, copy and paste the link you want google to crawl and index for you.
After filling Captcha and submitting request, search the url on google you will find out it has been crawled and indexed already just like the below snapshot, i used this post for example and you can see it was crawled in less than 15 minutes.