Go to Settings & Privacy > Privacy > This changes the audience of all your existing public posts to “Friends only.”
Instead of using Facebook profile viewers, users can explore alternative methods to gain insights into their profile engagement: facebook profile viewer
While you cannot see passive profile visitors, you can track specific interactions using these official Go to Settings & Privacy > Privacy >
You can always see who liked, reacted to, commented on, or shared your posts. This isn’t passive viewing, but it’s official data Facebook provides. Go to Settings & Privacy >
If you don't have a Facebook account or cannot see the content (because you are blocked), you can still report a profile through the Official Reporting Form . Summary of Consequences