Mapping multiple domains to different paths

Hello,

I’m trying to map multiple domains to different paths on a main domain. But I am not sure if it is wise idea.

My original plan is to setup the following

abc.com main domain

123.com mapped to abc.com/123
456.com mapped to abc.com/456
789.com mapped to abc.com/789
etc

If you were to visit abc.com/123/faqs/question1, it would be the same page as 123.com/faqs/question1

It would be one installation of WP, and the domains 123.com etc would be mapped to the paths on abc.com/123 etc

Presumably, there will only be one Google Analytics account so there is no issue with duplicated content.

However, if I want to run a PPC campaigns for domain 456.com and the other domains then I run into trouble.

I’m considering mapping abc.com/123 out to 123.com, which I believe is less complicated…. Essentially, the other way round.
– separate analytics account for each domain
– PPC accounts for each domain (and straight forward)

BUT, how do I address the duplicate content issue?

Many thanks for your thoughts.

Will