We have a very large blog at mainsite.com
We want to create a tool at mainsite.com/tool/ that will be it’s own WordPress site and doesn’t need to share anything with mainsite.com
But it is very important that the /tool/ doesn’t slow down mainsite.com and doesn’t really affect it at all.
Is it better to convert mainsite.com to a multisite or to use a reverse-proxy to have /tool/ as a directory?
Thanks!