If you’ve ever typed a website name into your browser, something called DNS helped you get there, even if you didn’t realize it. It’s a key part of how the internet works behind the scenes.
In this Tech Terms post, we’ll explain what DNS is, what it does, and why it matters when you’re online.
What Is DNS? Tech Terms Explained (Transcript)
Ever wonder how your computer knows where a website lives? That’s where DNS comes in. It stands for Domain Name System.
Think of it like the internet’s phone book. You type a web address like google.com, and DNS looks up the real IP address—a string of numbers that your computer actually uses to find the site.
Without DNS, you’d have to remember long number strings instead of names. So next time a page loads, you can thank DNS for doing the lookup behind the scenes.
What Is DNS?
DNS stands for Domain Name System. It helps your device find websites using easy-to-remember names instead of numbers.
Think of it like the internet’s phone book. When you type a web address like google.com, DNS looks up the real IP address—a string of numbers your computer uses to locate the site.
Without DNS, you would have to remember long number strings instead of simple names.
How DNS Works
You can think of DNS like looking up a phone number. You know the name, and the system finds the number.
Here’s what happens when you visit a website:
- You type a website name (like google.com)
- DNS looks up the matching IP address
- Your browser connects to the correct server
- The website loads on your screen
This process happens almost instantly. As a result, browsing feels fast and seamless.
Why DNS Matters (and When You Use It)
This system makes the internet easier to use in everyday situations. Instead of remembering long strings of numbers, you can quickly find websites by name.
You rely on it every time you:
Important to Know
The Domain Name System helps your device find websites, but it does not store personal details like your name or home address. However, your internet provider may still be able to see which websites you visit.
Because of this, it’s a good idea to:
How DNS Connects to Other Tech Terms
DNS works alongside other parts of the internet to keep everything running smoothly.
Quick Summary
Here’s the short version:
Additional Learning Resource
For a deeper explanation, you can explore beginner-friendly guides such as Cloudflare’s DNS documentation.
Check out more Tech Terms Explained videos on our YouTube channel to continue learning about how the internet works and how to stay safe online.
See all of our SDM Tech Terms short videos on the SDM YouTube channel.
