Two "Twin" Domains Responding to Web Requests

[johnneuron]

I do not understand this point in my Campaign Set-Up.

They are the same site as fas as I understand Can anyone help please?

Quote from SEOMOZ

"We have detected that the domain www.neuronlearning.eu and the domain neuronlearning.eu both respond to web requests and do not redirect. Having two "twin" domains that both resolve forces them to battle for SERP positions, making your SEO efforts less effective. We suggest redirecting one, then entering the other here."

thanks

John

[Mike.Goracke]

That is the problem... that they are the same site.

That means that Google can index both versions and visitors and other sites can create backlinks to both versions - which is not good, because it splits your backlinks up between two sites instead of one.

You need to set up a 301 redirect from one of the versions to the other, as well as set a preferred version in Google Webmaster Tools.

Hope this helps.

Mike

[Chris.Menke]

They're the same site but not the same url.  Notice one of those URLs begins with www and the other does not.  It's just a weird thing about the way internet servers are set up and having problems with which one of them should be the one you use is called a canonicalization issue.

Most webmasters chose to use the www version and redirect the non-www version to it via settings on the web host.  Here's some more reading on canonicalization.