DNS Settings for Digital Ocean Droplet - Root Domain?

[JammyDodger]

If clearing your browser cache doesn’t work, it may be because you need a letsencrypt certificate to cover the non-www version.

There’s a bit of info on how to do that in this topic:

Set up Let’s Encrypt with multiple domains / redirects

This is to address the problem where you get certificate errors with any redirects or CNAME DNS entries which point to your actual installed Discourse (sub)domain. If you do not have https configured already (you do if you have done a standard install recently) see Setting up Let’s Encrypt as your first step. There are two patterns that need to be replaced, one ending in --keylength, and another ending in --fullchainpath (in the actual file, your original domain is before each of these switche…

Or I think you can use something like this instead:

Non www to www without certificate error

The easiest way is to use www.forcewww.com for that. (Disclaimer: that’s my own service)