Get duplicate content error in seomoz even after fixed canonical

[Webworld_Norway]

http://www.webworld.no - We have been getting error Page Duplicate Content Errors. But we have fixed the canonical. Actually, we have list of portfolio and detailed page for each portfolio  But  We get error all portfolio pages are having duplicate content. But, i made canonical tag to direct to root page. Please help me to overcome this.

Also, i see duplicae webworld.no & www.webworld.no. is there anything i need to fix in redirection? in server?

[TomRayner]

Hi Robert

I think the problem with your portfolio is that there is not enough unique content on the page that Google can read.  Let's look at these two examples:

http://www.webworld.no/referanser/nordstrand-kiropraktorklinikk_14/#topp_
http://www.webworld.no/referanser/r%C3%B8d-eiendom_13/#topp_

Remember, Google doesn't "see" the images as we seem them, so for all intents and purposes it will be seeing these two pages as nearly identical, hence a potential duplicate content issue.  You can check how your page looks in Google's eyes with this SEO Browser.

As for the webworld.no & www.webworld.no issue, what's basically happening is that both URLs are being indexed, therefore they are technically duplicates.  For homepages, I recommend 301 redirecting one of the URLs to the other.  Decide how you'd like your homepage to be seen and then redirect the old URL to the new one.  SEOMoz also provides this handy redirection guide.

Hope this helps you.