This work deals with the selection and optimization of the most important SEO factors which should be emphasized during the process of creating new web pages. The aim of this thesis is to present which activities are hidden under the term SEO and that this is a comprehensive website optimization for search engines. This is not just about technical quality of processing sites, but mainly also optimization of the content. The thesis is divided into two parts - theoretical and practical. In the two introductory theoretical chapters, there are outlined the basic concepts, the principle of search engines and furthermore there are described the most important on-page and off-page factors in detail, including several practical examples. In the pra...