Domain name & handle format validation

The FRED implements several standard rules for domain name format validation:

• forbid consecutive hyphens,

• forbid empty domain name,

• enforce RFC 1035 preferred syntax,

• enforce single digit labels (for ENUM domains),

• forbid IDN punycode encoding.

The rules can be configured per zone.

If the Registry operator requires additional restrictions, they can be implemented by providing forbidden keywords or patterns in the domain blacklist. The restrictions can be configured for any period of time given by a starting and ending date of validity.

The Registry operator can also configure the format of handles of contacts, nssets and keysets, and they can do it for each object type separately.