Fixing Duplicate Content Using Parameter Handling in Webmaster Tools

Search Engine Optimization October 8th, 2009

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Parameter Handling in Webmaster Tools To Fix Duplication IssueA little while ago, the major search engines announced a solution for internal duplication issue named “Rel=canonical”. Google has now gone a step further in fixing the internal duplication issue within a website to make their indexing intact. As part of the efforts, Google has announced one more solution for internal duplication issue called “Parameter Handling Tool” in Google Webmaster Tools. Here is the official announcement from Google Webmaster Central Blog.

If you are not familiar with Duplication Issue, you can find the basic information in my earlier post “Duplicate Content Problems & Solutions For SEO.”

The parameter handling tool has been enabled by Google in webmaster tool accounts. The tools allows webmasters to have complete control of the Google robot to index our files. Some content management systems may produce different URLs for the same content based on how the user navigates around your website.

Here is an example how to use the Parameter Tool

Primary URL: http://www.example.com/product.php?item=swedish-fish

If a user reached the same page via category “gummy-candy”, the CMS may produce the URL as: http://www.example.com/product.php?item=swedish-fish&category=gummy-candy

If a user reached the same page through a shopping cart page, the CMS may produce this as the URL: http://www.example.com/product.php?item=swedish-fish&trackingid=1234&sessionid=5678

The issue in the past is that search engines would look at this as three different pages but the content is the same.  This may lead to penalty due to the same page content.  With "Parameter Handling" in GWT (Google Webmaster Tools) setting, you can now provide suggestions to Google’s crawler to ignore the URLs that contain parameters like category, trackingid, and sessionid.
Below is an image that illustrates how to enter the parameters which you want to be restricted from Google's Index.

image

This way of fixing duplication will not immediately reflect the indexing algorithm but it will be taken into account after Google's manual review. There is no harm in using both rel=canonical and parameter handling tool for fixing the duplication issue within the website. Rel=canonical works for all search engines whereas parameter handling tool works only in Google. You can choose the option that works the best for you although both if used simultaneously will help you to deal with duplication most effectively.

Yet another tip to keep your SEO in good order!

Post By Elan (18 Posts)

Elan has been applying his Internet Marketing and Web Analytics skills for over 11 years and has been sharing some of that experience here on the TechWyse blog!

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Elan has been applying his Internet Marketing and Web Analytics skills for over 11 years and has been sharing some of that experience here on the TechWyse blog!

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