Punycode Encode & Decode
Punycode Encode & Decode is an encoding tool that can convert internationalized domain names (IDN) and Punycode encoding in DNS, addressing the issue of DNS systems only supporting English-language domain name resolution.
What is the "Punycode"?
Punycode is an algorithm used for encoding Unicode text, such as internationalized domain names, into ASCII text. Its primary purpose is to represent non-English domain names within the Internet's Domain Name System (DNS), which traditionally supports only ASCII characters. By using Punycode, domain names that contain non-ASCII characters (such as special characters from international languages) can be converted into a format that is compatible with existing DNS infrastructure.
The way Punycode works is by encoding a Unicode string into a string composed entirely of ASCII letters, digits, and hyphens. The encoded string typically begins with the prefix "xn--", indicating that it is a Punycode-encoded string. When a user inputs an internationalized domain name, the system automatically converts it into Punycode form so that DNS servers can recognize and correctly resolve it.
Punycode is defined in RFC 3492 and is a crucial part of implementing Internationalized Domain Names (IDNs). This standard allows characters from languages around the world to be used in domain names, making the Internet more global and accessible.
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