The radical right is on the rise both in the real world and online, not only in Western European democracies but also in Central and Eastern Europe. In particular the radical-right use of the web is linked to hate speech and fake news. This chapter focuses on four Central Eastern European countries and analyses, through a systematic formalised content analysis on all radical right websites identified, the degree and forms of the use of the web by the political actors. It also focuses on the textual and visual forms of radical-right online propaganda, as well as differences and similarities across various type of groups and countries. The chapter presents the comparison between Eastern and Western radical-right organisations on the use of the web and propaganda. It summarises the academic state of the art concerning the role of the Internet in radical-right mobilisation. The chapter shows the comparative empirical analysis of radical-right political activism online.