AAAA is a domain name record, that is essentially the IPv6 address of the web server where the domain name is hosted. The IPv6 system was designed to replace the current IPv4 system in which each and every Internet protocol address is made up of 4 sets of decimal numbers between 1 to 255 e.g. 126.96.36.199. On the other hand, an IPv6 address includes 8 groups of four hexadecimal digits - from 0 to 9 and from A to F. The reason behind this modification is the substantially smaller range of unique IPs the current system supports as well as the speedy increase of gadgets which are connected to the Internet. An example of an IPv6 address would be 2101:1f34:32e2:2415:1365:4f2b:2553:1345. If you need to point a domain address to a server which uses such an address, you will have to create an AAAA record for it, and not the widespread A record, which is an IPv4 address. Both records provide the very same function, yet different notations are used, to identify the two sorts of addresses.