The online environment has become very large and very difficult to control. If before only a small number of people had access to place information on the Internet, now this has become very easy, including due to the advent of social media. If we talk about approaches to assess credibility online, we must say that there are several approaches: automatic, manual and mixed [1]. All these 3 approaches can be achieved by linguistic analysis of the text and/or information from social networks. Even the manual assessment of online credibility involves the use of online tools such as: crowd-sourcing or online questionnaires. Speaking about linguistic approach, most dubious news writers use their mother tongue strategically to avoid being caught. Despite trying to control what I say, mistakes occur in some verbal aspects that are difficult to monitor, such as the frequencies and patterns of use of pronouns, conjunctions, and words that express negative feelings [2].