Authoritative DNS vs Recursive DNS

What's the Difference?

When you type a website address into your browser, the page loads in seconds. Behind the scenes, however, a sophisticated system works to translate that human-readable domain name into an IP address your computer can understand. This process relies on the Domain Name System (DNS), often referred to as the internet’s map book.

If you’re Australian, and if you’re laymen to DNS & technology, a broad and basic example would be the pre year 2000 era Melway and Sydway map books. During this era, if we wanted to go from Point-A to Point-B, we would refer to a book called Melway – or Sydway if you’re in Sydney.

This book gave us maps of the roads, and we would follow the maps through the pages of the book. Whilst driving, we would constantly refer to this book to route ourselves to our intended destination.

We did not have a smart phone, and most importantly we did not get pulled over and fined for using a Melway – but that’s another story!

The Domain Name System or DNS is essentially a Melway for the Internet. When you type an internet address in to a URL bar on your browser, your computer contacts a series of Melway’s and Sydway’s (i.e. DNS Servers) which tells your computer the location and route to use to get to the intended destination (i.e. the destination being the URL typed in your URL bar).

There are two broad scopes of DNS. They are Authoritative DNS and Recursive DNS.

Although they work together to resolve domain names, they serve entirely different purposes.

In this guide, we’ll explain the difference between Authoritative DNS and Recursive DNS, how they interact, and why understanding both is essential for website owners, IT professionals, and anyone managing online infrastructure.