Users who land on Agendant.club may soon fall victim to a social engineering tactic. The website will generate pop-up notifications tempting the unsuspecting users to subscribe to its alerts for some vague benefit, or it may even try to trick them through a 'Click here to prove you are not a robot' message. No matter what the actual text is, the goal of these notifications is to trick the users into giving Agendant.club push notification permissions.
If allowed, Agendant.club will then abuse its privileges to spam the user with a stream of unwanted advertisements directly in the browser. The advertisements may even start covering up some of the content of the websites. Even closing the browser altogether will not mitigate the influx of advertisements.
While these social tactics are not that unsafe, clicking on any of the advertisements may lead you to shady third-party sites or inappropriate content. To prevent Agendant.club from bothering you with its advertisements, you should revoke any permissions given to it by going to the 'Settings' tab of your browser.