Domain hacks with unusual Unicode characters (2018)

The article describes a hidden feature in the Domain Name System (DNS) that allows domain names to be written using Unicode characters, which are then converted to a valid Top-Level Domain (TLD) by the browser. This is possible because modern browsers follow the IDNA2008 process to normalize these characters, which are not recognized by DNS servers. As a result, users can create cool-looking URLs using these characters, but they may not work consistently across all websites and platforms.