What does it mean for a registrant that the domains under synchronized IDN ccTLDs must resolve to the same address or value?
As above, the goal is to ensure an appropriate user experience, not to mandate identical answers to DNS queries at the protocol level. For a registrant, synchronization means that making a registration of “domainname.syncTLDa” also results in a registration of “domainname.syncTLDb”. The registrant of the domain names, and any variants of these domain names, must be the same. This might be presented by the IDN ccTLD manager as a bundled registration to the registrant. If a blocked or reserved registration model is preferred then the IDN ccTLDs are not considered synchronized as this will not fulfill the definition of synchronized IDN ccTLDs where the user expectation is that usage of the IDN ccTLDs produces the same result. The registrant is obligated to keep synchronization at lower levels of the registration. This means that the domains cannot be used for a purpose that is different. This will be apparent in the registration policy between the registry (or registrars/resellers) and th
