The Sui Name Service (SNS) is an innovative project offering an identity service for Web3 users. In Web2, domains are used to represent an IP address, making it easier for users to access websites. On the other hand, in Web3, domain names represent a crypto wallet address. Traditionally, every blockchain has its own naming service, maintaining its own database of .something domain names that point to wallet addresses. However, the Sui Name Service aims to be different.