Panda Updates - robots.txt or noindex?

[ianmcintosh]

Hi,

I have a site that I believe has been impacted by the recent Panda updates. Assuming that Google has crawled and indexed several thousand pages that are essentially the same and the site has now passed the threshold to be picked out by the Panda update, what is the best way to proceed?

Is it enough to block the pages from being crawled in the future using robots.txt, or would I need to remove the pages from the index using the meta noindex tag? Of course if I block the URLs with robots.txt then Googlebot won't be able to access the page in order to see the noindex tag.

Anyone have and previous experiences of doing something similar?

Thanks very much.

[irvingw]

both. block the lowest quality lowest traffic pages with nodindex and block the folder in robots.txt

[JarnoNijzing]

Indeed try both.

Irving +1

[irvingw]

Yes, both because if a page is linked to on another site google with spider that other site and follow your link without hitting the robots.txt and the page could get indexed if there is not a noindex on it.

[dmccarthy]

This is a good read. http://www.seomoz.org/blog/duplicate-content-in-a-post-panda-world I think you should be careful with robot.txt because blocking access to the bot will not cause them to remove the content from their index. They will simply include a message saying not quite sure what's on this page.. I would use noindex to clear out the index first before attempting robot.txt exclusion.