Copyscape is an online service that detects and identifies duplicate content on multiple websites.
The owner enters the URL of their website, Copyscape then scans all of the content and comes back with all the copied and similar portions of text. It will highlight the exact phrases so you know what specifically was copied.
If you choose to, you can have banners inserted onto your page, to advise people not to steal the content that is located on your website.
Realizing and removing duplicate content is important because you can receive a Panda penalty, which is considered black hat seo for your website. In some cases, the person who is duplicating content, can, also, be punished legally.
For more questions on using Copyscape or duplicate content, contact us at 857-526-0096.