SSL for both www and non-www domain

[leekung]

I notice the Lets Encrypt SSL only generate for non www domain only
when access with www.domainzz.com the cert is invalid

[tspicer]

Sounds like you might want to create a wild card SSL cert. You will want to run your own SSL cert process as the internal one is really focused on bootstrapping basic SSL for those who do not understand what it is or how to do it.