An AAAA record is an IP address in the recently launched IPv6 format and it consists of eight sets of hexadecimal numbers, as opposed to the IPv4 IPs, which feature 4 sets of digits between 1 and 255. An example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the number of IPs which can be created is many times greater than the number of the IPv4 addresses. Each and every domain has its website hosting server Internet protocol as a record and in essence, that record instructs the domain where the website for it is located. Depending on the system which the company uses, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record permits you to host your website with one company and your email messages with another, so if you decide to use such a redirection to forward a domain name to a server that uses an IPv6 address, you'll have to create an AAAA record for it.