A duplicate is a text that is absolutely identical to another, already existing text. Thus, duplication (double link, in Latin “duplcatus”) is one of the ways to distribute text on the Internet. From an SEO and online marketing perspective, it has negative consequences, as visitors perceive such content as unwanted noise and try to leave the page. The most common use of duplicate content is to make copies of someone else's content. First, it is published on another site so that it catches up with the original in terms of the relevance of the topics, the number of links in search results and, most importantly, the volume of pages. This will cause you to lose your potential audience. In the same way, you can get under the search engine filter