This chapter examines the role of the digital space in relation to Islamophobia online. Using empirical research data, the chapter draws upon how certain ‘trigger’ events can lead to an escalation of online hostility. It specifically cites the example of the Woolwich terrorist attack in 2013 and the reaction on social media towards Muslims. This chapter also argues that online incidents cannot be isolated from offline attacks. Both online and offline incidents are a continuity of anti-Muslim hate and thus should not be examined in isolation. Drawing on empirical evidence, the chapter demonstrates that the prevalence and severity of online Islamophobic hate crimes are influenced by ‘trigger’ events of local, national, and international significance. The visibility of people’s Muslim identity is also key to triggering online Islamophobic hate crime.