I'm working on a plugin to get a log of user activity.
It stores the $_SERVER["REQUEST_URI"] on database on each "get_header" hook request.
In the last 10 hours I got 5 request like
/verify-NotifyUser2?aHR0cDovL3d3dy5vcHBpbnkuY29tLm
The part after "?" seems to not be a fixed code.
What could it be this request?