Wildcard subdomains for a multi-tenant site — requirements before I upgrade

Support
1

Hi,

I run a multi-tenant SaaS on Netlify. Each customer (a church) gets its own
subdomain, e.g. assembleia-de-deus-madureira.nexps.net. All subdomains are
served by the same site — the app reads the tenant from the hostname.

My setup:

  • Site name: nexps
  • Primary domain: nexps.net
  • DNS: Netlify DNS (confirmed — nameservers are nsone.net)
  • Existing domain aliases: www.nexps.net and church.nexps.net
  • Current plan: Free

I understand wildcard subdomains are not self-serve (the “Add domain alias”
field rejects the asterisk), so before I upgrade I’d like to confirm the
requirements:

  1. Which plan is required — is Personal enough, or does it have to be Pro?
  2. Do my existing domain aliases have to be removed for the wildcard to work?
  3. Does the primary domain need to change to match the wildcard level, or can
    it stay as nexps.net?
  4. What is the correct target value for the * CNAME record in the Netlify
    DNS zone?

I’d rather get this confirmed up front than upgrade and discover a blocker
afterwards.

Thanks,
Paulo