An AAAA record is an IP address in the freshly launched IPv6 format and it is comprised of 8 sets of hexadecimal digits, unlike the IPv4 IPs, which include 4 groups of digits in between 1 and 255. An illustration of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the total number of IPs that can be created is many times bigger than the number of the IPv4 addresses. Every domain name has its website hosting server IP as a record and in essence, this unique record informs the domain name where the site for it can be found. Depending on the system that the company employs, the record will be called A (IPv4) or AAAA (IPv6). Changing this record allows you to host your site with one company and your emails with a different one, so if you choose to use this type of redirection to point a domain address to a server that uses an IPv6 address, you will have to set up an AAAA record for it.