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AIvikings Glossary

IDN

An IDN, or internationalized domain name, is a domain that can include non-ASCII characters.

Last updated July 24, 2026

Quick summary

Term
IDN
Plain-English definition
An IDN, or internationalized domain name, is a domain that can include non-ASCII characters.
Technical definition
An IDN, or internationalized domain name, is a domain that can include non-ASCII characters.
Commonly confused with
internationalized domain name
Related terms
Punycode, Unicode Domain, TLD

Definition

An IDN, or internationalized domain name, is a domain that can include non-ASCII characters.

Why it matters

IDNs support local languages and scripts, but they may require special handling in DNS and security checks.

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