A CNAME (or Canonical Name) record is an alias. When a website visitor's browser or mail user's app looks up the entered subdomain, the DNS system will respond by indicating that the IP address for the subdomain is the same as whatever target you enter here. The most common use for a CNAME record is to indicate that the www subdomain shares the same IP address as the root domain record. For example www.websavers.ca is hosted on the same IP as websavers.ca. Note that this doesn't mean it will forward all requests for www.websavers.ca to websavers.ca -- this action is up to the web host! For example, with our hosting, see here to learn how to set your preferred domain. Enter the subdomain (or leave blank to apply a CNAME for the root domain itself) and put the target for the alias in the \\"Canonical domain\\" field.