Duplication is negatively affecting the ability of your ranking pages to perform as well as they could. This is a common point of frustration among SEO professionals, especially those who manage ecommerce sites.
Too often, waiting on the client or development team to implement changes to a site that will help reduce excess crawling and indexation can hinder making the bottom line. What if there was a way to bypass all that and help search engines identify ranking pages? Google and Bing’s parameter handling tools allow you to do just this!
Warning: Changes made using parameter handling are seen as very strong “hints”. Use with caution.