I am adding some wikipedia.org content to my website in iframes, as a convenience to the users of the site. Each iframe is in a separate page of its own.
I am wondering if google sees the iframes inside my site as duplicate content and this might count against my site's SE ranking.
If so, would it help if I specify that the duplicate content pages not be searched? How should I do it - in the robots.txt or better to do it via meta tags?
(I thought this question must've been asked before but couldn't find a duplicate. site:groups.drupal.org/seo iframes)