In this article, we will teach you everything you need to know about DNS.

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Do you often wonder what DNS means? or maybe what role it plays with our daily connections? If you want to learn what DNS is, then we invite you to read on. This article aims to define what DNS is all about. We will also tell you how it works and the different types of DNS servers we always encounter.




What is DNS?

DNS is the acronym for Domain Name System. It acts like the internet’s ad-hoc phone book. When any person searches any word, item, or content from the web, they will certainly visit websites. Each of these websites has a domain name.

All our web browsers communicate through IP addresses. IP simply means Internet Protocol. The Domain Name System (DNS) is responsible for translating any domain name to an IP address. DNS allows web browsers to access any online source from the world wide web.

Any user device that connects with the internet has a unique IP address read in numbers. These numbers are separated by periods and a writing colon. When sending information to any device on the internet, other machines find them by using their IP address.


How Does a DNS Work?

DNS plays a crucial role in managing device IP addresses. It cancels out the need for people to memorize the IP address of the gadget they are using.

A DNS works with the process of DNS resolution. When a person types in a webpage address (www.pencilgraphite.org), the DNS converts it to an IP address easily read by any device ( The process is similar when you order a home-delivery pizza. You have to send them your home address so that the delivery personnel can easily find the location for delivery.

What is a Domain Name?

The domain name, also known only as domain, is the name given to websites across the internet. Domain names represent many websites from the world wide web. Usually, the domain name consists of a special name that comes after the primary name of a website (ex. aliensandufos.org, reviewvpn.com).

A domain name usually consists of a string of alphabet characters. These characters map with an IP address. Domain names act like a key that opens any website for any client browser.


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What is the difference between a URL and a Domain Name?

URL stands for Uniform Resource Locator. It is also famous as the web address of any website on the internet. The URL contains the domain name, transfer protocol, and path of a website.


Parts of a URL 1


What is an IP Address?

Every device connecting with the internet has its IP address. It serves as the identifier of any device interfacing with a TCP/IP network. Networks route messages to any IP address by using the TCP/IP protocol. The typical IP address has two main parts:

  • Network ID
  • Host ID


Parts of an IP ADDRESS 1


The DNS Servers that Loads a Website

When any person wants to visit a website, four DNS servers function to load the website.


DNS Recursor

The DNS Recursor functions like a friendly cashier at your favorite 24/7 store. A DNS Recursor receives all of the queries asked by any person through a web browser. The DNS Recursor works like the middleman between two parties. It will send all the necessary requests that will satisfy a person’s DNS query.


Root Nameserver

The root nameserver acts like the librarian that knows about every book inside all the shelves of a library. It will translate the domain names into readable IP addresses. The root server represents a guide with a map. It provides the right direction to take when searching for online content.


TLD Nameserver

The TLD Nameserver is comparable to the shelves in your old DVD store. It contains all the websites linking to the path of their URLs. The TLD Nameserver is the next step for accessing the IP address of any website on the internet. It hosts the path of any website URL.


Authoritative Nameserver

The Authoritative Nameserver contains all the crucial information of any IP address. It is the final step of a DNS Resolution. If the Authoritative server gains access to the IP address of interest, it will return the results to the DNS Recursor.



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What is a DNS Query?

A DNS Query is the message from the client machine to the Domain Name System. It will pass first through the DNS Recursor. When the final authoritative server successfully finds a matching IP address to a DNS query, it will bounce back the resulting website to any person browsing the internet.


What is DNS Caching?

When it comes to modern devices, we have probably encountered the term ‘caching’. Caching is the process of storing data in a particular location. It is prevalent in many modern apps and browsing functions. DNS Caching improves the responsiveness of a system. It also enhances the performance, stability, and reliability of handling DNS queries.



DNS is the term for Domain Name System. It is the system responsible for translating our requests and producing the website that contains the information we seek. The process from query to result is called DNS Resolution. There are four servers inside a DNS Resolution: DNS Recursor server, Root nameserver, TLD nameserver, and the Authoritative nameserver.

We hope this article teaches you about how a domain name system (DNS) works.

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