LGR

A formal, machine-readable set of rules that says which characters a label (glossary)label One dot-separated part of a domain name, up to 63 characters long. Full definition of label may contain, which labels are valid and which are variants of each other. ICANN (glossary)ICANN Internet Corporation for Assigned Names and Numbers The nonprofit that coordinates the global DNS and gTLD policy. Full definition of ICANN's Root Zone LGR applies this to top-level domains and decides which IDN TLD (glossary)IDN TLD Internationalized Domain Name Top-Level Domain A top-level domain written in a non-Latin script or with accented Latin letters. Full definition of IDN TLD strings and variants can be applied for.