The Domain Name System (DNS) helps us humans communicate with devices across the internet more easily. As people, we often have trouble remembering complex information like long strings of numbers. That's where DNS becomes useful.
Think of DNS like the internet’s phonebook. Instead of having to remember a computer’s unique number (called an IP address), we can use simple names like google.com.
Every device connected to the internet has its own unique IP address, similar to a home address that tells information where to go. An IP address usually looks like this: 10.0.2.14. It consists of four sets of numbers separated by periods.
Rather than memorizing those numbers, DNS allows us to use easy-to-remember names. It translates those names into IP addresses behind the scenes. It’s like saving someone’s name in your contacts instead of trying to remember their phone number.