Why can't I open google.com in my browser?

What browser are you using? Have you tried a different browser like Brave or Firefox?

What happens when you try?

Have you installed and run any "cleaning", "optimizing", "speed-up", anti-virus or VPN apps on your Mac?

Hard to determine or limit this symptom to one cause

through remote non-scientific diagnostics. ~A guess

might be that you could be located in a region where

a server or government might decide to block URLs.

Or try another browser to see if something else can

access web sites, if your default web access won't.