Canonical URLs for SEO

Canonical URLs are very important to avoid duplicate content penalties from Google. Before explaining, how to implement Canonical URLs in different CMS platforms – Lets understand what is canonicalization?
Canonicalization, is just a term used by Google to elaborate a process of selecting best URL for a particular web page, when there are several choices. In different CMS Softwares, if you select multiple categories for a single post, it may create multiple URLs for same content. For Example: and So to avoid this duplicate content (in excerpts too), using canonical URL is the best option.
How to implement canonical URLs:
  • Choose best URL (category) for a single post.
  • Add this url as canonical URL for other categories with same content (in header section).

Syntax: <link href="”" rel="”canonical”"/>