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Ha thanks for that. I read all over about these external links and everything seemed to point the same way that they were links pointing out over. A reword in the description of the crawl test categories I think is needed! Thanks again - Problem solved!

Hi Richard Honestly, I really don't know.  A lot of me wants to say that: "Surely Google will know this isn't deliberate and manipulative duplicate content".  You could take a couple of those URLs and do a Google search with them.  Do: site:www.example.com/page?query1 info:www.example.com/page?query1 With the first result, if your URL hasn't been indexed, that's a good thing.  For the second result, if the info search returns the original URL (without the parameters), that's also good, as it means Google will be counting the one with parameters as just a variation and to be ignored.  However, if it's returning the result with the parameters, that would indicate that the web crawler is indexing the version with parameters and treating it as a separate URL - raising the duplicate content risk.  Silly Google! Regardless of those results, I would look to implement the canonical tag anyway as it takes any guesswork out of the equation.  And ultimately, a lot of this work with Google is guesswork as we can't see the algorithm - although it's an informed guess due to experience etc.