An AAAA record is an IP within the recently released IPv6 format and it is comprised of 8 groups of hexadecimal numbers, as opposed to the IPv4 IPs, that include 4 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 sheer number of IPs that may be created is many times bigger than the number of the IPv4 addresses. Each domain name has its hosting server Internet protocol address as a record and in essence, that record instructs the domain address where the site for it can be found. Depending on the system which the provider employs, the record will 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 decide to use this kind of redirection to point a domain to a server that uses an IPv6 address, you'll have to create an AAAA record for it.