“…In the recent years, many researchers have investigated the classification of the Surface Web (Dumais and Chen, 2000;Sun et al, 2002;Kan, 2004;Kan and Thi, 2005;Kaur, 2014), and the Deep Web (Su et al, 2006;Xu et al, 2007;Barbosa et al, 2007;Lin et al, 2008;Zhao et al, 2008;Xian et al, 2009;Khelghati, 2016). However, the Darknet classification literature is still in its early stages and specifically the classification of the illegal activities (Graczyk and Kinningham, 2015;Moore and Rid, 2016).…”