An AAAA record is an IP address within the freshly presented IPv6 format and it comprises of 8 sets of hexadecimal numbers, in contrast to the IPv4 IPs, which feature 4 sets of digits between 1 and 255. A good example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the total number of IPs that can be created is many times bigger than the number of the IPv4 addresses. Each and every domain has its hosting server Internet protocol as a record and in essence, that record informs the domain where the website for it is. Depending on the system the company employs, the record will be called A (IPv4) or AAAA (IPv6). Changing this record will allow you to host your website with one company and your emails with a different one, so if you choose to use this type of redirection to forward a domain to a server that uses an IPv6 address, you'll need to create an AAAA record for it.