When you type a website name like google.com, your computer doesn’t know where that is. It needs the IP address—like a street address for the website. So it asks a DNS server, which looks up the name and says: “Oh, you want google.com? That’s at IP address 142.250.190.78.” Then your browser uses that IP to go grab the website.
You type a website name. Your computer asks a DNS server: “Where is this?” DNS replies with the IP address. Your browser uses that to load the site.
You’ll use DNS when setting up your own website. It helps you connect domain names (like maisonbell.com) to your hosting server. If DNS breaks, your site won’t load—even if your code is perfect.