Canonical tags were created to fix duplicate content issues. In a nutshell, if you have 3 duplicate pages (or approximately similar ones) you should pick just one of them to be shown in Google. Canonicalization is a way to help Googlebot decide what page to show in the SERP. However, rel=canonical tags don’t help the search engines unless you use them properly. This tutorial walks you through how you can use JetOctopus to audit rel=canonical tags quickly and efficiently across a website.