What identifiers to internationalize:
- XML elements and attributes: yes
- Domain names: monitoring work on internationalized DNS in IETF
- URI scheme names: No
- Protocol verbs (SMTP HELO,...): No
Internationalized URIs: Character Model, separate Note in preparation, IETF Internet-Draft under revision (HTML, XML, XPointer, XLink, XML Schema,...)
Monitoring work on internationalized DNS