olemus
saidi põhiaadress

ülevaateid
https://support.google.com/a/answer/177483

https://mediatemple.net/community/products/dv/204643340/what-is-the-difference-between-a-primary-domain-alternate-domain-and-a-subdomain

https://www.purpledogdesign.com/clients/knowledgebase/128/What-is-a-Primary-Domain.html

vt ka
- primaardomeeninimi