An AAAA record is an IP within the freshly introduced IPv6 format and it comprises of 8 groups of hexadecimal digits, in contrast to the IPv4 IPs, which feature 4 groups of digits in between 1 and 255. An example of an IPv6 address would be 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and with this format the total number of IPs that may be created is many times higher than the number of the IPv4 addresses. Every domain has its website hosting server IP address as a record and in essence, this unique record informs the domain address where the Internet site for it can be found. Depending on the system that the provider employs, the record is going to be called A (IPv4) or AAAA (IPv6). Changing this record allows you to host your site with one company and your email messages with a different one, so if you decide to use such a redirection to point a domain to a server that uses an IPv6 address, you'll need to set up an AAAA record for it.