The article reflects the results of a cybermetrics analysis of dynamic, technological and content markers of social-media information Russian-language threads on inter-ethnic and inter-religious relations in the Crimea and Sevastopol. The study assessed the extent of the spread of Russian-language messages reflecting and forming constructive and non-constructive inter-ethnic and inter-religious attitudes among residents of the Crimea and Sevastopol. The authors identified the relationship between the change of the specific weight of social-media messages about inter-ethnic and inter-religious relations on the Crimean Peninsula and the contexts, reflecting the specific features of the Soviet and Russian state policy, which defined the status of the peoples of the Crimea and Sevastopol. Also, we identified the basic types of competing discourses on inter-ethnic and inter-religious relations in the Crimean and Sevastopol segments of Runet. The main result of the research is the creation of digital markers dictionaries for the implementation of automated downloading of Internet content relevant to the research topic and the subsequent identification of predictors that allows recording the dynamics of risks for large amounts of data from social media. It allowed us marking Ukrainian-lingual and Crimean Tatar-lingual settlements to compare the characteristics of the Russian-language massif with the markers of social media threads about inter-ethnic and inter-religious relations in the Crimea and Sevastopol.