The client already collected data from simple websites with one niche – music. However, there was a need to expand the focus and analyze complex websites, where one can find lots of different informational categories and target audiences of various ages. The categories are eligible to extract valuable textual data about website visitors and allow to serve advertising in a more accurate way. Thus, the client needed to have a model, which could analyze millions of these web pages per day and categorize the content precisely following the valuable context results.