Google adding a page from your website to its library, so the page can show up in search results.
Like a library cataloguing a new book: until it is on the shelf list, nobody searching will find it.
A new website launched with a "noindex" setting left on from testing. It looked fine to visitors, but Google dropped every page, and the business vanished from search for three weeks.
Managed Search watches which pages are indexed each month and fixes the ones that fall out.
How long does a new page take to show up in Google?
Anywhere from a day to a few weeks. Submitting it in Search Console and linking to it from your other pages speeds that up.

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