Maybe this is a dumb question but I have read that forwarding a URL doesn't hurt PR like having a mirror site does. However, I recently changed domain names and set the old name to forward to the new one. I kept my development site on the old name though and it's PR has been greyed out. Could the development site be seen as a mirror site even though it's on a different domain (i.e. dev.domain.com)? There are no links going to my production site from the dev site but I am worried because both production and dev are on the same IP address. I forward all WWW traffic from domain.com to domain2.com, the new domain.
Thoughts?
Thanks