DNS records are pieces of information stored on a DNS server that map domain names to IP addresses and other types of data associated with a domain name. When you type a domain name into a web browser, your computer sends a request to a DNS server to look up the corresponding IP address. The DNS server responds with the IP address, and your computer uses that information to connect to the website associated with the domain name. Different types of DNS records include A records (which map a domain name to an IP address), MX records (which specify the mail server for a domain), CNAME records (which map an alias domain name to a canonical domain name), and others.