An AAAA record is an IP address within the freshly introduced IPv6 format and it consists of 8 sets of hexadecimal digits, unlike the IPv4 IPs, that include 4 sets of numbers between 1 and 255. An illustration 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 higher than the number of the IPv4 addresses. Every domain name has its hosting server Internet protocol as a record and in essence, that record informs the domain name where the Internet site 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 will allow you to host your site with one company and your emails with a different one, so if you decide to use such a redirection to forward a domain address to a server that uses an IPv6 address, you will need to set up an AAAA record for it.