The internationalized domain name (IDN) homograph attack is used to form domain names that visually resemble legitimate domain names, albeit, using a different set of characters [1]. For example, the IDN "xn--akmai-yqa.com" which appears in unicode as "akámai.com" visually resembles the legitimate domain name "akamai.com". Attackers often apply IDN homograph attacks to form domain names that are used for malicious purposes, such as malware distribution [2] or phishing [3], while appearing trustworthy to victims. \n The prevention of IDN homograph attacks is based on two complementary approaches: registration and access. On the client-side, major web browsers implement algorithms that attempt to identify IDN homograph attacks and present them in their true IDN form instead of unicode, to reduce their resemblance to legitimate domain names [4][5].…