Do parameters in URL cause duplicate content penalties?

2morrrowcom

New Member
I have a product page that I link to from articles on my site. I test different text and page elements in the article, and to track the clicks by appending a query string parameter to the product page URL.

The product page Page Rank dropped to zero. I don't fret over PR too much, but PR0 is concerning. It just dawned on me that the parameters might be the cause.

Is there a definitive guide on this? On this one you definitely penalized yourself by adding some tracking parameters at teh end of your URLs in the direct links.

I am not sure there is a definite guide for this type of issues

Happened to me a few years ago but i thought that major search tools had resolved this problem .. apparently not If there are some possible duplicate contents, you may experience some drops in the number of indexed pages and not PR in most cases. impact depends on How search tools have interpreted these duplicates ... How many have you done. It shouldn't have a major effect on it. Just make sure your other pages are linking to that product page, or you will notice a drop in pagerank. Interlinking is very important. Wrong!

If he tagged a large number of links in a different way he may have duplicated 3 or 4 times the website in a very short time period. This coul have been penalised by automatic filters! If you change the URL of the product page, of course it's going to change pagerank... its an entirely different URL... Quote: If you change the URL of the product page, of course it's going to change pagerank... its an entirely different URL... Of course! But i am not talking about that. Quote: and to track the clicks by appending a query string parameter to the product page URL By doing this, you have changed the url of the page you have been linking to, so you will have to start again with your new url. I don't think search engines nowadays are still have problem in dealing with dynamic parameters as long as they are normal parameters.
smile.gif
OK, thanks everyone. The crowd seems split on this subject, but just to be safe I am going to remove all the tracking parameters from the links.
 
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