An AAAA record is an IP in the recently introduced IPv6 format and it consists of eight groups of hexadecimal numbers, in contrast to the IPv4 IPs, that include four groups of digits between 1 and 255. An example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the number of IPs that may be created is many times higher than the number of the IPv4 addresses. Every domain name has its website hosting server IP address as a record and in essence, this record instructs the domain address where the Internet site for it is. Depending on the system which the provider uses, the record will be called A (IPv4) or AAAA (IPv6). Changing this record allows you to host your Internet site with one provider and your emails with another, so if you choose to use this sort of redirection to forward a domain to a server that uses an IPv6 address, you'll have to set up an AAAA record for it.