Duplicate page content due to Sort By dropdown

[jonmorse86]

Hi there,

I have over 150 Duplicate Page Title errors showing up in SEOMoz but on closer inspection these are related to the 'Sort By:' functionality on our ecommerce site that allows customers to sort our products by Price, Alphabetically etc.

To give an example:

http://www.parklanechampagne.co.uk/park-lane-champagne/special-occasions/easter

Is showing as being duplicated by this page:

http://www.parklanechampagne.co.uk/park-lane-champagne/special-occasions/easter?productlisting_page=1&sortorder=Price

Does anyone know how I can resolve this? Any help greatly appreciated.

Kind regards, Jon

CDFyp.jpg

[AlanMosley]

you need to use a canonical tag, to show that they are all the same page.

[jonmorse86]

Thanks Alan for the speedy response! Since posting I've also found this Google link: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=139394 which elaborates a little on your reply. Thanks again, Jon

[lunaraurora]

I have the same problem In my moz analytics, but with canonical tag set. I think the moz analytics should detect when a canonical tag is set and ignore the 'sortby, datecut, order' and other inputs, as duplicate contents.