I am using Netlify DNS for my domain renovatebot.com.
I currently have a Netlify site for “docs.renovatebot.com”. In the DNS control panel it shows up as type NETLIFY and “This is a system record that cannot be managed directly.”
When I remove the custom domain from this site (from the site’s control panel), the NETLIFY entry remains under Domains, and the site begins failing. The failing part I’d expect, but the NETLIFY entry remaining I do not.
I am allowed to add a CNAME entry for it within the domain control panel (to a non-Netlify site) but both entries are then there (both NETLIFY and CNAME), so I have reverted all changes.
Therefore my question is: How can I move a subdomain off of Netlify and onto an external CNAME?