Promotion and optimization of the site is not so simple. In order to make it profitable, it is necessary to make it popular and readable. The basic amount of users looks only at the first page of the SERP ("search engine results page"). Therefore owners of sites want to be on its first page. Search engines’ main principle is to provide the user with various and original information. As a rule, articles are copied from the popular sources, which are rated quite high. Thus, when the Web crawler indexes identical articles on a network, it compares both resources. As a result the first on the SERP will be a website with bigger rating. The destiny of the second site can be very sad. At first it gets to a certain filter, and in case if such violation is repeated receives banned by the search engine. Nothing can save this site after that and any information on it, original or copied will be unavailable for users. 

 How to protect website content?
The problem of copying of authoring articles exists for a long time. That is why there are a lot of content protection methods on the network today. The simplest one is specifying in the bottom of a site that copying is authorized only with the permission of the author or is generally forbidden. Unfortunately, this option of protection works very seldom and can stop almost nobody. Skilled owners of websites with the useful and unique information use more difficult methods of content protection and often combine few of them. One of the most widespread options is implementation of a special script into the code of a site. It forbids the unfair user to copy information when using the shortcut menu. The main drawback of an additional script is that it causes load on the server and decreases website performance.

There are also simpler similar methods. They also prevent text from copying by users. For use of this protection skills in html and css are required. For example, there are certain attributes which forbid opening of a context menu, don't copy the selected text into a clipboard or generally forbid selection. Besides, it is possible to protect the content by small cunnings. Insert the imperceptible link to the webpage (into a punctuation mark, for example) or a layer with the transparent picture, using z-index property in style sheets before a text layer.The special plug-ins, allowing to protect a content were developed for owners of WordPress blogs. Some varieties of similar extensions will be suitable for many sites with different functionality.
One more method is a detection of stolen articles. This can be done using different services and programs that check a website and find plagiarism.

Real protection!
There is always a possibility that authoring text will be simply reprinted in any text editor and then placed on some other website, no matter what scripts or attributes weren't used on a site. Nevertheless, a method to protect the content exists. It is called technical protection. Yandex developers realized importance of unique information on the Internet. Therefore they created special service. Before placing the authoring information on a site it is possible to send it to this service. After uniqueness confirmation (service checks existence of the given information on other webpages) article is assigned to the site. There is such thing as deposition. It is procedure of legitimation of copyright. It concerns the information placed on a resource and elements of website design. Copyright of a unique content should be notarially certified.