DNS stands for Domain Name System. It's a decentralized hierarchical system used on the internet to translate human-readable domain names (like www.itwonderlab.com) into machine-readable IP addresses (such as 2606:4700:3034::ac43:a39e) that computers use to identify each other on a network.
DNS acts as a directory service, enabling users to access websites and other internet resources using domain names rather than remembering complex IP addresses. When a user types a domain name into a web browser, the DNS system resolves that name into the corresponding IP address, allowing the user's device to connect to the intended web server or resource on the internet.