SEM complex promotion of websites is a set of the following actions: search engine optimization (SEO), work on site improving, online advertising (for example, Google Ads), Social Media Marketing (SMM), targeted advertising, behavioral marketing, reputation marketing, work with photo and video content, constant collection and analytics of updates, correction of ineffective methods. As a rule, debugging a working effective search engine marketing strategy for large companies takes up to three months. In the beginning, the results can be "floating", which largely depends on the actions of competitors. It is therefore important to work constantly with relevant data to analyze the effectiveness of the methods used.