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Hi all I use Yoast SEO on wordpress which does a pretty good job of insertint rel=canonical in to the header of the pages where approproate, including on my event pages. However my crawl diagnostics have highlighted these event pages as duplicate content and titles because of the instance id parameter being added to the URL. When I look at the pages head I see that rel=canonical is as it should be. Please see here for an example: http://solvencyiiwire.com/ai1ec_event/unintended-consequences-basel-ii-and-solvency-ii?instance_id= My question is how come SEOMoz is highlighting these pages as duplicate content and what can I do to remedy this. Is it because ?instance_id= is part of the string on the canonical link? How do I remove this? My client uses the following plugins "All-in-One Event Calendar by Timely" and
Google Calendar Events Many thanks!