If I have 2 domain names that point to same website (for example: microsoft.com and microsoft.net both point to microsoft.com), how can search engines distinguish that these two websites are the same website and not duplicate content?
My question is because I know that Google, for example, have a duplicate content filter, and I want know what to do to declaratively say that the two domains are the same and are not duplicate content websites.
Thanks!
Choose which is to be the primary domain and then implement a 301 redirect on the other.