Mac Infection via Website Visiting? Is it possible for a mac to get infected by just visiting a URL?

I was searching for someone's profile when suddenly the URL browser showed a couple of re-directions and then my macbook started beeping.

Ever since, the ActivityMonitor is also showing high cpu activity...

I do not wish to download any mac cleaners or other software, but I wonder if I could check my mac myself to see if there is malicious software or something like that?

Are there any folders I should look at to see if there is something in them that is not supposed to be there?
Yes it’s possible, no it’s not likely. 

You should do one of three things:


get malware anti bytes for Mac and scan for malware
make your user non administrator if you might be browsing places you don’t trust
reinstall the os if you feel you are very compromised and possibly get help from someone on cleaning


Chances are, a reboot is all you need to do unless beeping and high cpu persist.