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Ubify Core Engineering Team
SOFTWARE ENGINEERS & SYSTEMS ARCHITECTS
About This Tool
The Punycode & IDN Domain Converter is an essential networking utility that transforms non-ASCII internationalized domain names (IDN) into the DNS-compatible ASCII Punycode format and vice versa.
Why Punycode Is Required: The legacy Internet Domain Name System (DNS) historically only permitted standard ASCII letters, numbers, and hyphens. Punycode (defined in IETF RFC 3492) provides a standardized representation for international alphabets (German, French, Arabic, Chinese, Cyrillic) and modern emoji domains by prefixing encoded strings with "xn--".
Key Capabilities: ā¢ Bidirectional Conversion: Instant two-way encoding (Unicode to Punycode) and decoding (Punycode to Unicode). ā¢ Homograph Threat Analysis: Detect look-alike domain spoofing attacks. ā¢ Full Emoji Compatibility: Encode modern emoji domains (e.g. š.ws) into official registrar DNS records.
How to Use
- 1
Enter your international domain name or Punycode string into the input box.
- 2
Click Switch Direction if converting from Punycode back to readable Unicode.
- 3
Inspect the converted DNS-safe output string and domain metrics.
- 4
Copy the result with 1-click for registrar or DNS zone file configuration.
Frequently Asked Questions
What does the "xn--" prefix signify?
The "xn--" prefix is an internationally reserved DNS marker indicating that the following string is a Punycode-encoded internationalized domain name (IDN).
Can I use this tool to decode emoji domains?
Yes! Popular emoji domains like š.ws or ā¤ļø.to are fully decoded and encoded with standard Unicode codepoint mapping.
Is this converter RFC compliant?
Yes, it complies strictly with RFC 3492 (Punycode: A Bootstring encoding of Unicode for Internationalized Domain Names in Applications).