An AAAA record is an IP address within the freshly released IPv6 format and it consists of 8 groups of hexadecimal digits, unlike the IPv4 IPs, which feature four groups of numbers in between 1 and 255. An example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the amount of IPs that can be created is many times bigger than the number of the IPv4 addresses. Each domain has its hosting server Internet protocol as a record and in essence, this unique record tells the domain where the Internet site for it is. Depending on the system which the company employs, the record will be called A (IPv4) or AAAA (IPv6). Changing this record permits you to host your site with one provider 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 set up an AAAA record for it.