In this paper, we introduce a new approach to semantic analysis of web pages. To prove this approach we designed method for analysis and evaluation of web pages. The method is built on a silent agreement between web designers and users. The key aspects of this agreement are web patterns which are used by web designers in their web page implementations. With our method we can find out whether the pattern is presented on the page with high level of relevance. Key feature of our method is independence on the page HTML code. In this lecture we explain essentials of our approach as well as key features of our method and context for proper usage. We present experiments which prove efficiency of the method and usefulness of the approach.