Today, I noticed Google had indexed my developer server. It's a subdomain of my main domain. It's NEVER referenced anywhere. Not sure how it's found it.
But it's an EXACT copy of the live site, used for development. And guess what, it's indexed TONS and TONS of the pages.
I'm just gonna change the name of the folder so it's gone and then password protect from their prying eyes.
Maybe I was silly not password protecting it in the first place. We live and learn!