Adding canonical still returns duplicate pages

[MOZ2]

According to SEOmoz, several of my campaigns show that I have duplicate pages (SEOmoz Errors).  Upon reading more about how to resolve the issue, I followed SEOmoz's suggestion to add rel='canonical' <links>to each page.  After the next SEOmoz crawl, the number of SEOmoz Errors related to duplicate pages remained the same and the number of SEOmoz notices shot up indicating that it recognized that I added rel='canonical'.</links>

I'm still puzzled as to why the SEOmoz errors did not go down with respect to duplicate page errors after I added rel='canonical', especially since SEOmoz noticed that I added them.  Can anyone explain this to me?

Thanks,
Scott.

[RTG]

Hi, I had a similar problem lately. The solution was to correct the tags integration in the source code.
Could you pls provide an example url or a snippet of your code?

[donford]

Hi Moz2, the first thing I would think is that the tag was added incorrectly, or not to the appropriate pages. I concur with redtreeGermany in that it may help for us to see a specific example.

[MOZ2]

The URL is www.oralsurgeonhouston.com - just view source to see the rel='canonical' -- Thanks!

[donford]

Hi Moz2,

Website URL
"http:www.oralsurgeonhouston.com"

Canonical URL
"http://www.oralsurgeonhouston.com/"

Those are 2 different urls notice the trailing slash, and your site redirects from the slashed version to the non slashed version, but your canonical tag points to the slash version basically confusing the hell out of a crawler.

Here is some help on the slash from google webmasters blog.

Hope that helps with that page and your issue.

Don