A canonical url component is associate hypertext mark-up language component that helps webmasters stop duplicate content problems by specifying the "canonical" or "preferred" version of an internet page as a part of program improvement.

In other words, a canonical URL is a URL that you want visitors to see. Quite often canonical URLs were used to describe the homepage. The typical example used is that most people treat the following URLs as the same: www.example.com. example.com.

Canonical Link is an HTML Element that helps webmaster to prevent dublicate content issues by specifying the canonical version of a web page

canonical element, often called the “canonical link”, is an HTML element that helps webmasters prevent duplicate content issues. It does this by specifying the “canonical URL”, the “preferred” version of a web page. Using it well improves a site's SEO.