iFinity

OK, that's a situation I hadn't thought of before.

You should be able to handle this using the 'Requested Url' option in the Canonical Linker module settings.

Enter these regex expressions to filter the Url as you want:

Regex value to match

(?<prodid>ProdId/\d+)(/rtntab/\d+/pageindex/\d+/catid/\d+)

Regex replace value

${prodid}

This should ignore the 'catid' only Urls, but when the other parameters are there, should show only the prodid.

Url Rewriting isn't going to help easily, because what you're trying to do is to convince search engines there are only two actual versions of the Url, when in fact there are more than that. A redirect or rewrite approach may stop the module from working as you want.

FANTASTIC!

I implemented yesterday and Google already has one URL using the canonical instead of the crawled URL. This is going to be a HUGE help in reducing duplication issues!!

Excellent product.