Canonical URLs link (tags) plugin

[PGGO]

Canonical URL link (tag) in between head sections of the HTML code, will benefit website for SEO purpose.
Example canonical link (tag):
<link rel="canonical" href="http://www.flynax.com/" />
OR
<link rel="canonical" href="http://www.flynax.com/features.html" />

This will reduce a duplicate content issue with search engines!
This link should be added to all important pages, such as categories.

For example:
The canonical link for the page URls below should be as following:
<link rel="canonical" href="http://www.flynax.com/features.html" />

Sample page URLs:
http://www.flynax.com/features.html
http://www.flynax.com/features.html?...inamic_content
http://www.flynax.com/features.html/index2
http://www.flynax.com/features.html/index3

(all the pages above; the search engine consider as the same pages. In this case, the canonical link (tag) will tell search engine where the main URL is located)

This is will avoid PENALTY of the search engines for duplicate content on the website.