An AAAA record is an IP in the freshly introduced IPv6 format and it consists of eight groups of hexadecimal digits, in contrast to the IPv4 IPs, which include 4 groups of digits in between 1 and 255. An example of an IPv6 address would be 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the sheer number of IPs that can be created is many times larger than the number of the IPv4 addresses. Every domain has its website hosting server Internet protocol address as a record and in essence, that record tells the domain where the website for it is located. Depending on the system which the service provider employs, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record permits you to host your website with one company and your e-mails with another, so if you choose to use this sort of redirection to forward a domain address to a server that uses an IPv6 address, you'll have to set up an AAAA record for it.