Canonicalization is a way of informing search engines that the URL of a certain website is the original and not a copy. Having a canonical tag helps your websites rankings, as it can prevent the instance of having duplicate content, and helps search engines direct users to the right page.
About Sean
Sean Si is a Filipino motivational speaker and a Leadership Speaker in the Philippines. He is the head honcho and editor-in-chief of SEO Hacker. He does SEO Services for companies in the Philippines and Abroad. Connect with him at Facebook, LinkedIn or Twitter. Check out his new project, Aquascape Philippines