How many unique users saw your content and how they interacted (likes, shares, comments).
The Facebook Page Viewer is part of Facebook Insights, a free analytics tool that provides detailed information about your Facebook page performance. To access the Page Viewer, simply navigate to your Facebook page and click on the "Insights" tab. facebook page viewer
If a "viewer" encounters inappropriate content on a page, Facebook provides several reporting mechanisms. Reporting a Page : Users can report a page for violating Community Standards by selecting "Report Page" from the page options menu. Technical Issues How many unique users saw your content and