This thesis gives an insight into the field of internet marketing with a special focus on Search Engine Optimization (SEO). For the purpose of this thesis one website is selected and analysed in order to determine how successfully SEO has been performed. Different sources of visitors are analyzed and their activity is measured. The goal of this thesis is to give a set of recommendations to the operators of this website. Based on those recommendations the operators should be able to increase the number of visitors. In addition, this work also contains a comprehensive overview of basic internet marketing methods with a more detailed overview of different factors which influence SEO. This focus is both on OnPage and OffPage factors.Tato diplom...