Hi. I am having problems with diplicate content. All of the following URLs point to the same content. All of them are in cache. http://www.carladaly.com/index.php?main_page=page&chapter=0&id=4¤cy=USD¤cy=EUR http://www.carladaly.com/index.php?main_page=page&id=4&chapter=0¤cy=GBP¤cy=EUR http://www.carladaly.com/index.php?main_page=page&id=4&chapter=0¤cy=USD¤cy=GBP http://www.carladaly.com/index.php?main_page=page&chapter=0&id=4¤cy=USD¤cy=USD http://www.carladaly.com/index.php?main_page=page&id=4&chapter=0¤cy=EUR¤cy=GBP http://www.carladaly.com/index.php?main_page=page&chapter=0&id=4¤cy=EUR http://www.carladaly.com/index.php?chapter=0&id=4&main_page=page How can I have only one version of these pages? Can I redirect them with a 301 to a static page?
You could use the .htaccess file to 301 redirect each page. This could be a lot of work if you have this problem throughout your site. You might want to look into mod rewrites to clean up your urls. Search engines don't really like pages dynamic pages that pass more than 2 variables through the url. You could also consider setting the currency as a cookie. That way you don't need to pass that variable to each page through the url.
First ask yourself: What is duplicate content? How did search engine's detect duplicate contents? Does meta tags represent duplicate contents? If yes, are my pages having the same meta tags? How can i modify the cached page? All these questions can be answered through thorough research and reading.