What is DNS, and How Does it Work?


DNS is treated as one of the most useful components of the Internet. We can also say DNS is one of the processes and ways for making a connection to any device on websites or blogs through the Internet. All the devices connected to the Internet use a unique number called IP address (Internet Protocol address).

Without an IP address, we can’t access the Internet on our devices. Due to an increase in the number of devices connecting to the Internet, the IP address was also lacking, and introduced IPv6. Like smartphones, the website also has IP addresses like androidspring.com, the IP address of this website may be, so it may be difficult to remember the IP address of any website or URL.

Compared to any website’s IP address, the URL or domain name of that website and blog are quite easy to remember and set in mind. For example, androidspring.com is easy to understand and keep in mind compared to its IP address, 

What is DNS, and How it Works.

DNS is the Internet’s phonebook through the domain name (a website name) that can connect and interact with that domain’s IP address.

When the users visit any website (like androidspring.com), the web browser interacts or connects to that website through an IP address. DNS is that which helps in translating the domain name (website name) to the IP address of that domain name.

What is a Domain Name Server?

A domain Name Server is a server used on the Internet to connect any website (domain) with its IP address. DomainName System (DNS) is a hierarchical naming system used in internet connectivity devices to connect to the Internet.

DNS includes the various details of the domain. It helps convert or translate the address, making it more readable and memorized by the users.

 The term what is DNS and how it works makes it clear that it includes various information with a domain name, including its IP address, URL, etc. Domain Name Server helps locate and identify the connection with the underlying network protocols.

DNS is just like the contact of our mobile where we can find the mobile number, address & other information in the name of the contacts.

Suppose I search the name ‘Krishna‘ in my phonebook, then when I tap in the contacts name Krishna, I can find its mobile number and other optional data too. When I call Krishna, the call will be auto-forward to their mobile number of Krishna but not to Krishna itself.

DNS translates domain names to IP addresses so browsers can load Internet resources.

How does it Works

After finding all about what is DNS in networkingwhat is a domain name serverwhat is the meaning of DNSis DNS how it works and what is the domain name in networking it is necessary to find out what is DNS and how it works

All internet activities are based on IP addresses.

Without an IP address, we can’t connect to the Internet. All the devices connected to the Internet, like mobile phones, computers, laptops, tablets, and websites, have their private network or IP address. Although the Internet is based on IP addresses, it is difficult to use and connect to any website through an IP address.

Therefore, DNS (Domain Name System) service is used. DNS translates the Domain Name into Address. From the point of what DNS is and how it works, We can say that a DNS service automatically translates or converts the name into the corresponding IP address.

The process of DNS involves converting a hostname (www.androidspring.com) into a computer-friendly (Device friendly) IP address (like

How does a domain name system work?

DNS works with special techniques or with just like the mobile phonebook method. For example, if you want to visit Facebook.com may have an IP address like So, remembering this numeric IP address may not be easy.

But the domain name facebook.com is easy to remember this is because the domain name is alphabetic and easy to remember.

After discovering what DNS is and how it works, the next stage is to find out how it works. DNS is a short-term description of a network of personal devices that make it easier to obtain and understand information.

All the information from all the domain name servers across the Internet is gathered in the server. When we type any website address, the internet service providers (ISP) view the DNS associated with that Domain Name and translate it into a computer-friendly IP address automatically in very short moments. DNS helps direct or connect the correct website with the domain or web address. 

Purpose of the domain name system?

  • DNS helps in translating names into IP addresses.
  • Facilitate fault tolerance and load distribution to multiple server instances worldwide.
  • DNS provides a mapping between a domain name and a mail exchanger.
  • DNS can provide an additional layer of fault tolerance and load distribution.
  • Domain Name Server acts like a phonebook or contact book on the Internet.


By reading what DNS is and how it works or what is a domain name server, it is clear that Domain Name Server or System is a system that provides a way to connect any device to the Internet and website.

Domain Name System (DNS) is the mutual contact book of the Internet, just like on your mobile phone. A domain Name System is a main component on the Internet that provides a way to match the domain name to the IP address of the website.

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