Serving a published site on your own custom domain, for example brand.yourcompany.com, is something we are working on. It is not yet available to set up in the app.
Today
Published sites are served on a Baseline link, which you can find by opening your live site from the editor or the Sites page.
Coming soon
Custom domain support is on our roadmap. If a custom domain is important for your team, get in touch and we will keep you posted.
Next steps
In the meantime, learn how to publish and unpublish your site.