Sorry if this is a dumb question - I think i know the answer, but…
There are CAs which use nonce-based validation for a specific host, not a full domain. Does LetsEncrypt support this?
My use case is that I have full control of multiple web servers like:
However, I don’t have control of the server that responds to the root myexample.com, nor do I have direct control of the myexample.com name servers.