<p>The audiovisual platform TikTok has become a&#xa0;relevant space for social groups of all kinds. It offers users the opportunity to create their own networking spaces and perform identity management. Because of the platform’s affordances—especially its multimodality—users, in theory, have the possibility to share dissenting discourse beyond their own networks. This also makes it possible for history-related content which for example delegitimises the Holocaust or heroises Adolf Hitler to be shared with an audience outside of one’s own ingroup.</p><p>From the perspective of historiography, this interdisciplinary article aims to examine the practice of past-related hate speech in the field of tension between (counter-)publics. An explorative approach with a&#xa0;thematic focus on #Holocaust was chosen for the study of the observation object on the platform itself. The resulting field notes were analysed using an inductive content analysis. Within this approach, it becomes clear that users utilise multimodal formats on the platform to set their own topics and build networks. The analysis identifies three main levels: (1)&#xa0;the level of comments, (2)&#xa0;the level of videos and (3)&#xa0;the level of networking media actions. The analysis indicates that the boundaries between public(s) and counter-public(s) on the platform are flexible and meander.</p>