Once you verified your domain/channel on PUBLC (if you haven't learn how here), you can go to your dashboard and check out your content analytics.
Simply go to your publisher page, then as an admin of the page you should have a button on the left side bar "Dashboard". After clicking that link you will be in the dashboard overview section which will give you the general stats. In order to get more in depth analytics click on "Analytics" on the left sidebar which will give you stats per each content. You can add some filtering and order it by: Newest content, most clicked, etc..