[kjoshi]

There are several tools available for checking the duplication of the contents whether they are uploaded on the site or even to check before uploading. If you are required to check the contents of your site being used by any other website then use the copy scape tool which is really a fabulous tool. But if your willing to check the contents written for your site by your content writer whether he or she has written the fresh and unique contents then you may use the paid version of copy scape or other tools like duplichecker and Plagiarism-checker by smallseotools.