Hi, @jackow98. The branch subdomain feature makes the branch name the subdomain of the primary custom domain domain. If the primary custom domain is
altra.space (and it is) and the branch name is
staging then the branch subdomain will be only
staging.altra.space. There will be no
www prefix for the branch subdomain.
This means that if if the primary custom domain was
www.altra.space then the branch subdomain would be
It sounds like you want to add a domain alias which points to the branch. At this time, there only way so assign a domain alias to a a non-production branch.
One solution would be to make a new site linked to the same repo with the
consult branch set to be the production branch of the site. Then you can add any custom domain you want to the site and it will use the branch in you choose as production.
If there are other questions, please let us know.