An AAAA record is an IP address within the newly introduced IPv6 format and it is made up of eight sets of hexadecimal digits, 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 number of IPs which can be created is many times larger than the number of the IPv4 addresses. Every domain has its web hosting server IP as a record and in essence, that record informs the domain name where the website for it is. Depending on the system the provider employs, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record enables you to host your website with one provider and your e-mails with another, so if you choose to use such a redirection to point a domain address to a server that uses an IPv6 address, you will have to create an AAAA record for it.