What is Canonical?
It is defined as: ‘Code of laws enforced in a hierarchy’ and allows a website to communicate to search engines which pages the website owner considers to be more important than other similar pages.
In ecommerce terms it is a page that you:
This is a fancy term for the way in which product data is listed and categorized in online stores.
Correctly handling faceted navigation is a challenge that has to be tackled and proper execution is a vital task for any ecommerce site. Evaluate your site now to make sure that you are:
Why You Need to Understand Canonical
Recent survey of US ecommerce sites showed that:
It is hard to understand how your navigation appears to a web crawler, because there so many duplicate pages are created by categories and filters. For example you may have the same product listed:
Check Your Canonicals!
e.g. category page/?color=red
Duplicate Content Penalties
Of course, all this talk about duplicate pages brings up the old Duplicate Content Penalty, something which we all hear about so often in the web business.
Simply, there is no such thing!
But the cost of having duplicate pages is REAL - your duplicate product pages get to share the link value and as a result sink out of the search result listings.