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-- Google SEO News and Discussion
---- Does tagging URLs with reference parameters affect SEO?
deadsea - 4:51 pm on Jan 21, 2013 (gmt 0)Thread source:: http://www.webmasterworld.com/google/4537929.htm
Oh yes. Parameters are even worse than anchors in this regard. Implementing canonical tags would be the way to go in that case.
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