Canonicalization

If you have identical content on different links on your website...Canonical tag is a way to tell the search engines to view them as one. By putting canonical tags you are assured that search engines wont term your content as duplicate or repeated as canonical tag is a way of telling search engines that a specific URL represents the master copy of a page. It is indicated with "rel canonical".By using canonical tag you are commanding search engines which version of a URL you want to appear in search results. Canonicalization is again an important on-page SEO factor and has to be on your technical SEO checklist for SEO marketing.