How to change the primary domain name and keep the existing one pointed to the site?

In this case we recommend the following steps:

  • Change your primary domain from your SiteGround User Area -> My Accounts -> Manage Account (for the account whose primary domain you wish to change) -> Change Primary Domain.
  • Park your old domain name in cPanel, Parked domains.

This will allow your site to work by both your old and new primary domain name.