An AAAA record is an IP within the recently launched IPv6 format and it comprises of 8 groups of hexadecimal numbers, in contrast to the IPv4 IPs, which feature four 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 number 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 address as a record and in essence, that record instructs the domain address where the site for it is located. Depending on the system the company uses, the record will be called A (IPv4) or AAAA (IPv6). Changing this record allows you to host your website with one provider and your emails with a different one, so if you decide to use this type 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.