Hi Jim!
Thanks for the question. One thing we should clarify before we move forward is that the Pro app doesn't actually report on duplicate URLs, but we do report when we find duplicate title tags or content.
Duplicate titles just refer to when we find the same title tag on more than one page. In one example from your diagnostics, we're reporting the title tag 'Truthbook Religious News' is being used in multiple pages (http://screencast.com/t/GYCKNfAoj).
Duplicate content is content we see on the source code of your pages that is identical or nearly identical and would cause the pages to compete against each other for rankings. To fix either of these you have a several options:
- Set up a 301 redirect to have the pages you would consider duplicate redirect to the main page.
- Change the content/title tags enough that they won't be considered duplicates
- Canonicalize the content you would consider duplicates.
Most developers will go for the latter two options so that the pages will still be reachable by visitors. You can find out more about how to implement these in our Help Hub.
To answer your other questions:
1 - At the time of the crawl, we were able to get to sub domain pages from other pages on your site. The sub domains were also resolving separately, but they seem to be redirecting to your root domain now, so your next crawl should reflect this.
2 - Running a curl for the print versions of your pages, I see "no follow" tags related to Wikipedia links embedded (http://screencast.com/t/reYjeLLPvWG3) in the doc, but I'm not finding any "no index tags" (http://screencast.com/t/DsXMZInngSzH). This would be why you're seeing us crawling those pages.
3 - As I mentioned above, our crawler looks for similarities in the source code of pages when reporting on duplicate content. Since no one knows exactly how similar content would need to be for the search engines to consider it a duplicate, we err on the side of caution and recommended best practices when reporting them. Using one of the methods mentioned above and detailed in our Help Hub should resolve this for you
Let me know if you have any other questions!
Best,
Sam
Moz Helpster