Every device that is connected to the Internet has a distinctive identifier named IP (Internet Protocol) address. This includes computers, web servers, smartphones, switches, etc. The pool of IPs, that was introduced originally, is already distributed, therefore the so-called IPv4 IP addresses are slowly being replaced with IPv6 addresses. Every domain that opens an internet site comes with an IP record, that is the address of the server where it is hosted. Using the IPv4 system, the record is called A and it is made up of 4 sets of numbers from 1 to 255 split up by a dot, while within the IPv6 system it is called AAAA and it consists of 8 sets of hexadecimal numbers i.e. this sort of records use digits from 0 to 9 and letters from A to F. An illustration of an AAAA record is 2010:0c48:43d3:2142:1012:8c3a:2475:2435 and this format can handle a significantly larger amount of IPs when compared with the IPv4 format.
