An AAAA record is an Internet protocol address within the recently presented IPv6 format and it comprises of eight different groups of hexadecimal numbers, unlike the IPv4 IPs, which feature four groups of digits between 1 and 255. An example of an IPv6 address would be 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the sheer number of IPs which can be created is many times larger than the number of the IPv4 addresses. Every domain name has its website hosting server IP as a record and in essence, this unique record informs the domain where the website for it is. Depending on the system which the service provider employs, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record enables you to host your website with one company and your email messages with another, so if you choose to use this sort of redirection to point a domain to a server that uses an IPv6 address, you'll need to set up an AAAA record for it.