An AAAA record is an IP in the freshly launched IPv6 format and it is comprised of 8 sets of hexadecimal digits, in contrast to the IPv4 IPs, that include four groups of digits in between 1 and 255. An illustration of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the sheer number of IPs that could be created is many times bigger than the number of the IPv4 addresses. Each domain has its web hosting server IP address as a record and in essence, that record informs the domain where the site for it is. Depending on the system which the company uses, the record will be called A (IPv4) or AAAA (IPv6). Changing this record allows you to host your website with one company and your e-mails with a different one, so if you decide to use this kind of redirection to forward a domain name to a server that uses an IPv6 address, you will have to create an AAAA record for it.