Step 2.4: Canonical Duplication
Basic Concepts | On-Page | Canonicalization
This occurs when a page is made accessible from multiple URLs as a result of poor or incorrect canonical configuration. For example, without proper canonical setup, the homepage of the site example.com could be accessible from the following URLs:
- http:// example.com
- http:// example.com/
- http:// example.com/index
This is to list just a few of the possible variables, many more variations are possible and commonplace.
These problems occur for a number of reasons, Google know how to handle some, but not others.
Canonical tags will prevent this from being a problem and is your best safeguard against all of these issues.
For all of these category of issue, we can resolve them by setting up redirects which force the canonical URL to be used.