An AAAA is a type of DNS record that maps a domain name to a IP address Version 6.
The A record maps a domain name to a IP address Version 4
api IN AAAA 2001:41d0:1:1b00:213:186:33:18
where:
If the apex domain is example.com, this entry will point the qualified domain name api.example.com to the ip 2001:41d0:1:1b00:213:186:33:18