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=”canonical” 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.
The canonical element is now supported by RSSeo!: you can easily indicate Google and other search engines as well the preferred version of a page by choosing its "canonical" from an Ajax based URL list.
Specifying the canonical page in back-end
![RSSeo! revision 12 canonical url](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 canonical url.png)
The non-canonical source page
![RSSeo! revision 12 - the page source of a canonical url](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 canonical url page source s.png)
Video tutorial:
Ep. 77 - How to specify the canonical version of a Joomla! page to prevent duplicate content
2. Generate the robots meta tag for each crawled page
RSSeo! revision 12 comes with an easier method of handling the meta robots tag: each crawled page has a dedicated section where you can control the content that should or shouldn’t be indexed by the search engine robots, through 5 specific parameters: index, follow, archive, odp and snippet.
By default, the “index” and “follow” parameters are enabled for all pages, which means that no indexing restriction has been imposed.
![alt](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 robots s.jpg)
3. Enable/Disable the ability to use the php exec function
One of the RSSeo! crawler alternative solutions to loopback connections is the usage of the PHP "exec()" function. We’ve included a new option that allows you to enable/disable this function via the "Settings" tab.
![](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 enable php exec function.jpg)
4. Include/Exclude Auto crawled pages to the sitemap
We’ve improved the sitemap functionality by including the option to include/exclude autocrawled pages.
![](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 include autocrawled pages in sitemap.jpg)
5. New “Pages” options
To enhance the “Pages” tab functionality, we’ve created a filter to show/hide sitemap pages and a new button that automatically adds multiple pages to the sitemap.
Another important improvement is the ability to set the page priority and frequency of each crawled page.
![](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 sitemap filter.jpg)
![](https://cdn.rsjoomla.com/images/blog/RSSeo rev 12 add to sitemap.jpg)
Changelog
How to update to RSSeo! revision 12