The page contains multiple canonical formats
The page URL can also be accessed by using an alternative URL. Search engines identify unique pages by using URLs. When a single page can be accessed by using any one of multiple URLs, a search engine assumes that there are multiple unique pages. Use a single URL to reference a page to prevent dilution of page relevance. You can prevent dilution by following a standard URL format.
Pick a canonical URL format for your site and then ensure that all the links in your site follow that format. (For example, always use lowercase letters.) If an external link that points to your site does not use the canonical URL format, use permanent HTTP redirection to redirect site visitors and search engines to a canonical equivalent of that URL.
These violations are from the Bing SEO Toolkit, and are the same violations
that Bing finds when crawling the internet, it is a safe bet that Google would find
much the same violations.
"exactly the same as the crawler of the search engine will see it"
Alessandro Catorcini ,
Lead Program Manager, Bing API
Date Recorded: 2011-10-04
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