Plus and Pro include the feature for connecting your own custom domain. Basic does not include this feature.
This means Plus and Pro let you connect a domain that you already own. The plan does not purchase or register a domain name for you; you remain responsible for obtaining it from a domain provider and keeping its registration active.
What happens on Basic?
Your store continues to use its Storedoor address. This address is ready to share with customers, uses a secure connection, and can be renamed subject to the store-URL change rules.
How can I check the feature?
Open Settings & Configurations, then select Custom Domain. If your plan does not include the feature, the tab displays a lock and an upgrade message instead of the connection form.
Is the security certificate included?
Yes. Secure access is included for the Storedoor address on every plan. When you connect a custom domain on Plus or Pro, its SSL certificate is issued and renewed automatically after the domain is configured and verified.