This article highlights the following in serial order Duplicate Content Table Definition Duplicate Content Issue What is not considered as duplicate? How to address duplicate content issue? Google's Parameter Handling tool Reference Links Duplicate Content Duplicate content is a substantial block(s) of content within or across the domain that completely matches the other content or are appreciably similar. Duplicate Content Issue Duplicate content has always been a major issue in the optimization of the website. Search engine spiders always consider fresh content and as such provides the most relevant result for the search query. If there are duplicate articles within the website, then it becomes difficult for the search engines to decide which is the actual article that needs to be displayed for the search query. It makes it difficult for the search engine spiders to crawl and index the content. Moreover, the page rank juice towards the actual article gets shared across the artic...