Google Apps primary, secondary and alias domain comparison
If you have a Google Apps Free edition account or want to get a Free / Legacy account from ggappsfree.com and you’re confusing about the definition/advantages/disadvantages of the primary domain, secondary domain and alias domain in Google Apps / G Suite account. On this topic, ggappsfree.com will help you understand more details about that to decide whether to add your domain as a domain alias or as an additional (secondary) domain. Read more