🌐 RFC 3492 / RFC 5891 Internationalized Domain Resolver
Punycode & IDN Domain Converter
Convert Internationalized Domain Names (IDN) with Unicode characters and accents into ASCII Punycode (xn--) and vice versa.
Input
Sample IDN Domains:
münchen.de
café.fr
bücher.ch
xn--e1afmkfd.xn--p1ai (пример.рф)
RFC 3492 Punycode Algorithm
Punycode is a representation of Unicode with the limited ASCII character subset allowed by DNS. An IDN domain label like münchen is encoded as mnchen-3ya and prepended with the standard ACE prefix xn--, yielding xn--mnchen-3ya.de.