I'm not sure if this is the correct place to post this.
I had a new site built on a dev server and used NOINDEX, NOFOLLOW and it worked. Google did not index.
I launched new site a month ago on a different host. I just discovered that since launch Google has been crawling the development server: mydomain.theirnamedev.net.
Now, a customer could click a SERP and think they're on my site but would not be able to purchase (among other messed up stuff).
What is the best way to tell Google not to index again and to remove the all the pages they already have crawled? -Thank you