Illegal content and terrorist propaganda are still spreading rapidly online in the European Union, new analysis shows. With increased scrutiny on mainstream sites, alt-right and terrorist sympathizers are flocking to niche platforms where illegal content is shared freely, security experts and anti-extremism activists say. Among the sites now favored for sharing illegal content there are Twitter clone Gab.ai, video-sharing site web.tv and message board Justpaste.it (which has signed on to the European Commission’s voluntary content-policing program), most of which are known to feature neo-Nazi, anti-Semitic, sexist or ISIS-inspired terrorist content, according to a review conducted by the Counter Extremism Project. “Many platforms, like … 4chan, Discord and Gab.ai, are not forthcoming with their approach to restrict and remove the spread of illegal content,” said David Ibsen, the head of the Counter Extremism Project.”