Domains

You can manage domains directly from Cofounder.

Open the Domains page from the account menu. Domains is a standalone page next to Settings, not a section inside Settings.

The Domains page has two main tabs:

Search to find and secure a new domain
Owned to view domains your organization already controls

You can also start a domain transfer from the Domains page.

Depending on the domain state, you can:

search for domains
buy a domain from the site
import an existing domain
transfer a domain in
view domains your org already owns
edit DNS records
update nameservers
manage auto-renew

Manage Your Own DNS Records

If your domain uses Cofounder's managed nameservers, the domain owner can add, edit, and delete DNS records from the Domains page.

You can also ask Cofounder in chat to manage DNS records for you, such as adding verification records, pointing a subdomain, or reviewing the current DNS setup.

Use this when you need to point a subdomain at another service, add verification records, or update records for email and app setup.

DNS editing is available only to the domain owner. If the domain still uses another DNS provider, Cofounder shows the records you need on the Domains page, but you add them at that provider instead of editing them inside Cofounder.

Propagation Takes Time

After you buy a domain or change nameservers, it can take a while for DNS and nameserver changes to propagate.

Expect that to take anywhere from a few minutes to a few hours.

During that window, parts of the setup may still show as pending while providers catch up.

Assigning A Domain

When you assign a domain, Cofounder wires it into the managed app and marketing setup created during onboarding.

That assignment sets up:

the apex domain on the managed marketing project
staging.<your-domain> on the managed marketing staging environment
app.<your-domain> on the managed app project
staging.app.<your-domain> on the managed app staging environment

It also updates the managed Supabase auth configuration so the app site URL and auth redirect URLs match the assigned domain.

First Owned Domain

If your organization does not already have a managed domain assignment, Cofounder can auto-assign the first trusted owned domain after purchase or order refresh.

Auto-assign skips domains that are still purchase-pending, use external DNS, or do not yet show trusted ownership. Those domains stay on the Owned tab until you finish setup or assign them yourself.

Assign Or Switch

On the Owned tab:

if no domain is assigned yet, choose Assign
if another domain is already assigned, unassigned owned domains show Switch projects over to this domain

Switching makes the selected domain the primary domain for your managed app and site. Cofounder detaches other managed domain assignments as part of that switch.

Domains that still need external DNS setup show a DNS setup state instead of Assign or Switch until verification is ready.

Inbox Domains

Your domains can also be used for agent inboxes.

In Settings > Inbox, you can choose which of your domains should be available as inbox domains for agents. Once a domain is ready there, you can assign inbox addresses to agents on that domain.