The main element of any site is its text part - content. The content performs not only an information function, but also serves as a criterion by which the site is optimized by search engines.
Website content creation is a responsible job that a competent webmaster will not entrust to a non-professional performer. The main requirement for content, in addition to its readability, is uniqueness.
Why uniqueness is needed
Content creation requires from the author knowledge of the topic and the basics of SEO optimization, the ability to express thoughts in literate Russian and form information in a readable form.
Often, unscrupulous authors or non-professional webmasters, in order to save money, simply copy text from sites of a similar subject - the so-called copypast. Alternatively, fragments of text are taken from various resources, and a new text is formed from them. And the third way is rewrite. With this type of content creation, one or more sources are rewritten in their own words with maximum preservation of meaning.
All of these writing methods produce non-unique content at the end. The uniqueness of the rewriting may be higher, but the author of the original source always recognizes his text. Search engines distinguish between plagiarism and take appropriate measures, up to a complete ban of the resource.
In addition, the texts posted on the sites are in some way intellectual property. "In a way" - because the system of copyright protection on the Internet has not been completely worked out.
How to check the uniqueness of content
There are many online programs to check the uniqueness of content. The checked text must be filled into the form and set the check parameters. Usually, programs set the optimal parameters by default, but in order to optimize the result and eliminate errors, you can reduce the shingle value. A shingle means the number of words in the checked combination; it is not recommended to put less than three.
Ideally, unique content is content written by the author himself from the first to the last word. But there are stable phrases, technical and legal terms, names of laws, which in any case the system will give out as non-unique fragments. If there is no way to avoid using them, the only way to increase the uniqueness of the text is to bring the rest of it to one hundred percent uniqueness.
Ideally, the uniqueness of the text for any check with a shingle of at least three should be one hundred percent. But at least 97% is allowed - in this case, the verification services give the uniqueness an "excellent" grade.
Some services distinguish, in addition to the general uniqueness, the percentage of rewriting, and although when ranking sites, rewriting is not counted as plagiarism, it is advisable not to have any signs of plagiarism on a quality resource.