DNS stands for Domain Name System which is important for the different domain owners. When you register and buy a website then you are provided with an IP address. The IP address is in digital form, like- 102.27188.74. Human may find it difficult to remember the IP address for the different website and this is why the domain name system was introduced. Instead of number, a name was given to the particular IP address and this made it easy for us to remember the website name.