An AAAA record maps a hostname to an IPv6 address.
- Open Zone Editor and click Manage for the domain.
- Click Add Record.
- Select AAAA.
- Enter the hostname and the correct IPv6 address.
- Save the record.
Only publish an AAAA record when the destination service is actually reachable over IPv6. Clients can prefer IPv6 when an AAAA record is present, so a broken IPv6 destination can cause intermittent-looking connection problems.