Here's the problem. If you do a google search for site:maindomain.com you'll see all of the subsites' pages of the Multisite network.
I'm wondering if there's a way to avoid this somehow as I really don't want anyone to see all of my client's sites that way.
I was thinking that it could be possible if I used the Multi Domains plugin and had all new sites created on a different domain but I wouldn't want to give clients the option to choose a domain name on signup. I'd want to have them automatically use a particular domain. Is this possible or is there another solution?