RSSeo! revision 12 brings two highly requested features: canonical support to solve the duplicate Joomla! content issues and the ability to generate the robots meta tag for each crawled page.
1. Canonical support
Joomla! has duplicate content issues: a single page can be accessed by users and search engine robots through multiple URLs.
Google has solved this issue by releasing the rel=ÔÇŁcanonicalÔÇŁ attribute, which allows webmasters to specify the preferred version of a certain page and place it in the head section of the non-canonical pages.