That's helpful, I will do that.  Thanks Marcus!

Hi there,

Our site's forums include permalinks that for some reason uses an intermediary URL that 302 redirects to the URL with the permalink anchor.

For example:

http://en.tradimo.com/learn/chart-analysis/time-frames/

In the comments, there is a permalink to the following URL;

en.tradimo.com/co/50c450005f2b949e3200001b/  (there is no content here, and never has been).  This URL 302 redirects to the following final URL:

http://en.tradimo.com/learn/chart-analysis/time-frames/?offset=0&limit=20#50c450005f2b949e3200001b

The problem is, Google is indexing the redirect URL (en.tradimo.com/co/50c450005f2b949e3200001b/) and showing duplicate content even though we are using the nofollow tag on these links.

Ideally, we would directly use the last link rather than redirecting.  Alternatively, I'd say a 301 redirect would be preferable.  But if both aren't available, is there a way to get these pages out of the index?

Is the canonical tag the best way?  I really wish I could just add /co/ to the robots.txt file, but I think they would still be in the index, right?

Thanks for your help!