A DNS (Domain Name System) server is a computer server that contains a database of public IP addresses and their associated domain names. When you enter a domain name into your web browser, a DNS server is responsible for translating the domain name into the corresponding IP address. This allows you to access websites using easy-to-remember domain names, rather than having to remember the numerical IP addresses. DNS servers also store other types of records, such as those used for email and for managing network traffic.