The Domain Name System, or DNS, is like the phonebook of the internet.
It helps users reach websites by translating easy-to-read domain names such as
example.com into IP addresses such as 192.0.2.1 that computers use.
DNS makes browsing easier because people can remember names better than long strings of numbers.
How DNS Works
You type a website name into your browser.
Your device asks a DNS resolver for the correct IP address.
If needed, the resolver queries other DNS servers.
The IP address is returned to your browser.
Your browser connects to the website server.
Why DNS Is Important
Without DNS, users would need to remember numerical IP addresses for every website.
DNS makes the internet more user-friendly, scalable, and efficient.