CNAME, or Canonical Name, is a type of DNS record that maps an alias name to the true or canonical domain name. This allows multiple domain names to point to the same IP address, simplifying domain management and enabling easier redirection of traffic. For example, if you have a website at example.com and want to use www.example.com as an alias, a CNAME record can be created to link the two. This way, visitors can access your site using either domain, and any changes to the IP address only need to be made in one place.