Is an acronym for "Domain Name System". DNS is a hierarchical distributed database that lets you store IP addresses and other data and look it up by name. This is the system that organizes and identifies domains. DNS is the "phone book" of the web. While a phone book translates a name like “Acme Pizza” into the right phone number to call, the DNS translates a URL (like "http://EasygCloud.com") into an IP address (like “74.125.239.137”). For some Google Workspace functionality, you need to adjust DNS records of your domain. For example, DNS is used to determine where to deliver email for your domain via mail exchange (MX) records.