To be visible in search results, every website should be SEO-friendly. Every search network has different requirements for ranking. The most popular one is Google. It is a monopolist with 92.62% market share on the World Wide Web and has more than 5.4 billion searches every day. The audit we have done before the SEO-optimization stage showed the critical issues of the website. These issues make a basis for further optimization, however, we should do not only technical changes but to improve some semantic approaches. The further Search Engine Optimisation (SEO) requires a preliminary site audit, which can be divided into several stages. After that SEO specialist creates the list of issues and recommendations which are implemented within the optimisation stage.