tags: #publish links: [[Networking]], [[DNS]], [[Unicode]] created: 2021-09-17 Fri --- # Punycode A representation of a [[Unicode]] International Domain Name (IDN) using only the characters `[a-z0-9-]`. Prefix is `xn--` This allows IDNs to be crammed into the legacy ASCII-based DNS system. https://www.dynadot.com/community/help/question/what-is-punycode