Every single device which is connected to the world wide web has a distinctive identifier known as IP (Internet Protocol) address. This includes computer systems, web servers, smartphones, switches, and so on. The pool of IP addresses, that was introduced at first, is already distributed, therefore the so-called IPv4 IP addresses are progressively getting replaced with IPv6 addresses. Every domain name which opens a website has an IP record, that is the address of the server where it is hosted. When using the IPv4 system, the record is called A and it is made up of 4 groups of numbers from 1 to 255 split up by a dot, while in the IPv6 system it is called AAAA and it consists of eight sets of hexadecimal numbers i.e. this type 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 works with a significantly greater amount of IPs when compared with the IPv4 format.