!!! Overview
[{$pagename}] is defined in [RFC 3492] as a way to represent [Unicode] within the limited character subset of [ASCII] used for [Internet] [hostnames]. 

For [example], "München" (German name for the city of Munich) would be encoded as "Mnchen-3ya". 

Using [{$pagename}], host names containing [Unicode] characters are transcoded to a subset of [ASCII] consisting of letters, digits, and hyphen (the Letter-Digit-Hyphen (LDH) subset, as it is called).

[{$pagename}] has been used in [Phishing] [Attacks] to miss-represent [hostnames] which are referred to as [Homograph attack][2] [3]

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [Punycode|Wikipedia:Punycode|target='_blank'] - based on information obtained 2017-06-21 
* [#2] - [Phishing with Unicode Domains|https://www.xudongz.com/blog/2017/idn-phishing/|target='_blank'] - based on information obtained 2017-05-05
* [#3] - [Faking Domain Names with Unicode Characters|https://www.schneier.com/blog/archives/2017/04/faking_domain_n.html|target='_blank'] - based on information obtained 2017-06-21