The article is devoted to the problem of search engine optimization in the context of nowadays reality. Linguistics can become one of the main instruments to improve its marketing position of the web-product so the linguistic approach to the search engine optimization acts as the modern and effective mechanism. The task of search engine optimization is to achieve the most effective promotion of the site in the search engines while preserving the most possible naturalness of the text. Now the topic of the so-called over-optimized texts is becoming especially urgent. One of the ways of the search engine optimization of a site can be clustering as an automatic search and detection of semantically similar groups of files among a predetermined n...