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Add Internationalized Domain Names (IDNs) to Allow and Block Lists with the help of Punycode. 

Internationalized Domain Names (IDNs) represent domain names in non-Latin or extended Latin languages, such as Russian, Chinese, Cyrillic, Arabic, etc.

Since internet DNS servers cannot natively process the characters of these languages, they employ Punycode to convert Unicode characters into ASCII.

Input the native domain name into a converter like Punycoder.com and add the result to a policy's Allow/Block List to successfully manage the IDN within your environment.