Was the site itself actually infected(hacked)? If not, then all you need is adblock (like ublock origin). And that was true for last 20 years.
If website actually got hacked then I don't know of any good solutions. It will be flagged soon or later, and new visitors will be blocked by "Google Safe Browsing". Using something like "Qubes OS" might protect you against attacks based on browser zero-days but VMs don't really protect against ClickFix when people usually share clipboard between host and client VMs.
Comments
Was the site itself actually infected(hacked)? If not, then all you need is adblock (like ublock origin). And that was true for last 20 years.
If website actually got hacked then I don't know of any good solutions. It will be flagged soon or later, and new visitors will be blocked by "Google Safe Browsing". Using something like "Qubes OS" might protect you against attacks based on browser zero-days but VMs don't really protect against ClickFix when people usually share clipboard between host and client VMs.