An Internationalized Resource Identifier (IRI) is an extended version of a Uniform Resource Identifier (URI) that supports Unicode characters beyond the ASCII character set. This allows non-Latin scripts (e.g., Chinese, Arabic, Cyrillic) and special characters to be used in web addresses and other identifiers.
A-Z
, 0-9
, -
, .
, _
), IRIs allow characters from the entire Unicode character set.https://de.wikipedia.org/wiki/Überblick
https://de.wikipedia.org/wiki/%C3%9Cberblick
Ü
is encoded as %C3%9C
)IRIs are defined in RFC 3987 and are supported in modern web technologies like HTML5, XML, and RDF.
IRIs make the internet more linguistically inclusive by allowing websites and resources to be referenced using non-Latin characters, improving accessibility worldwide.