Internetintermediate1 min read

Punycode

N/A

Punycode

Punycode · N/A · Punycode · PYOO-nee-kohd · xn-- domains · IDN encoding · Internet · dns · unicode · securityInternetxn-- domains IDN encoding

/PYOO-nee-kohd/

Also known as: xn-- domains, IDN encoding

Last updated August 9, 2026

Definition

Punycode encodes internationalized domain names into ASCII (often starting with xn–) so DNS can handle non-Latin characters.

Real-World Example

Seeing xn-- in a link bar can reveal a disguised internationalized phishing domain.

References

discuss://translation · public

Translation discussion

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