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canonical

What means Canonical URLs?

The term Canonical is derived from mathematics and means a URL in simplest or standard form. It is widely used within SEO circles. For example a home page could have multiple URLs:

  http://www.mysite.com/
  http://mysite.com/
  http://www.mysite.com/index.php

These are different URLs as far as a search engine is concerned as technically a Web server could return different content for each. However many web servers are configured to return exactly the same content:

 index.html

In this case we should pick a one version of the URL, the canonical form, and use this both internally and externally. All other forms should use an HTTP 301 permenant redirect to send search engine robots (and users) to the correct version.

See also

canonical.txt · Last modified: 2018-05-12 22:10 by Michaelsy