AAAA is a domain name record, that is basically the IPv6 address of the server in which the domain name is hosted. The IPv6 system was introduced to replace the present IPv4 system where each and every Internet protocol address is made up of 4 groups of decimal numbers ranging from 1 to 255 e.g. 184.108.40.206. On the other hand, an IPv6 address has 8 sets of 4 hexadecimal digits - ranging from 0 to 9 and from A to F. The reason behind this modification is the considerably smaller selection of unique IPs the existing system supports as well as the speedy increase of products which are connected to the world wide web. A good example of an IPv6 address is 2101:1f34:32e2:2415:1365:4f2b:2553:1345. If you wish to direct a domain address to a web server that uses this kind of an address, you will need to set up an AAAA record for it, and not the widely used A record, which is an IPv4 address. The two records provide the exact same function, but different notations are used, in order to distinguish the two forms of addresses.