Thanks to both of you for the replies.
I created a new subdomain and a new droplet and used those for a third attempt, and everything’s up and running now.
When I ran ./discourse-setup during my first try, I didn’t see any indication in the output that there was any problem with the domain or SSL; it’s possible there was an error reported and I just missed it, but if so, it might be nice to make that kind of error notification more obvious.
I’m glad to have my new Discourse set up and running. Thanks again for helping out a newbie.
Would it be possible to add a section to discourse/docs/INSTALL-cloud.md at main · discourse/discourse · GitHub with Troubleshooting Tips, and if so, could I help contribute to that?