What are Domains, IPs, and DNS?

Note from the “Basics” Category: If you are an advanced user or a network engineer, this article will seem very elementary. This category is specifically designed for a non-technical audience. Our goal here is to translate tech jargon into everyday words so anyone can take control of their digital presence.

When you decide to take your business online, you encounter a daunting alphabet soup: IP, DNS, Domains, Hosting… Today we’re going to demystify the first three using an analogy we all know: the telephone system.

The IP Address: Your website’s phone number

Imagine that every computer connected to the internet needs a phone number so others can call it. That “number” is the IP Address (Internet Protocol).

In simple terms, an IP address is a numerical sequence (for example, 192.168.1.50) that identifies a specific device on the network. In the case of a web page, that IP identifies the computer (the server) running the program where your site lives.

The Domain: Your contact name

This is where we humans come in. People have a very hard time remembering long sequences of numbers. Imagine having to memorize 142.250.190.46 every time you want to go to Google. It would be a disaster.

To solve this, the Domain Name System was invented. The domain is, simply put, the name you save on your cell phone. Instead of dialing your mother’s full number, you simply search for “Mom” in your contacts. On the internet, instead of typing an IP, you write mycompany.com.

The DNS: The global phonebook

Now, how does your browser know which “phone number” (IP) corresponds to the “contact” (Domain) you just typed?

That’s where the DNS (Domain Name System) comes in. The DNS acts exactly like the old, giant phonebook (or your cell phone’s contact directory). When you type a domain in your browser, it “asks” the DNS: “Hey, what’s the IP of this page?”. The DNS searches its records, finds the number, makes the connection, and in milliseconds, the page appears on your screen.

What’s next?

Today we touched the surface of the phonebook, but there’s a slightly deeper level that is vital when you want to connect professional emails or change servers.

In our upcoming articles in the Basics category, we will talk in depth about DNS: we will explain what authoritative servers are, what those records really mean, and why (and how) they are configured in your domain provider’s panel. Don’t miss it!