On my request, our company has implemented a function in our website that adds
<meta name="robots" content="noindex"> to blog articles and whitepaper pages that haven't been published yet.
Point is, as soon as the whitepaper or the blog article is published, the meta tag is removed. Does Google then automatically start crawling again? Or should we manually let Google know that there are new pages that should be crawled? If so, is there any way to let Google know automatically?