An AAAA record is an Internet protocol address within the newly released IPv6 format and it is made up of eight sets of hexadecimal digits, as opposed to the IPv4 IPs, which include four sets of numbers in between 1 and 255. A good example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the sheer number of IPs that can be created is many times bigger than the number of the IPv4 addresses. Each and every domain has its web hosting server Internet protocol as a record and in essence, that record tells the domain name where the website for it can be found. Depending on the system which the provider uses, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record permits you to host your site with one company and your emails with a different one, so if you choose to use this sort of redirection to forward a domain address to a server that uses an IPv6 address, you will have to set up an AAAA record for it.