Why DNS Exists
Understand why we use names instead of memorizing IP addresses.
Names Instead of Numbers
DNS (Domain Name System) translates human-friendly names like example.com into the IP addresses computers actually use to connect.
People remember names far better than numbers. DNS lets you type a website name instead of memorizing an address like 93.184.216.34, acting as the internet’s phone book.
The Phone Book Analogy
Like a phone book maps a person’s name to a phone number, DNS maps a domain name to an IP address. You look up the name; DNS returns the number to dial.
Without it, you would need to know the exact IP of every site and service you use, which would be impossible to manage as addresses change.