I need help understanding port 80 security

[NotReadyForThisJelly]

Thanks for the clarity of your response DreadPirate, and all your many responses on these forums. You've been a tremendous help to me even before this response.

I suspected that was probably the case about the certification renewal.

Good to know about the Caddy redirect. I'll do some "peace of mind" testing about that to make sure it redirects consistently and then most likely reopen port 80 permanently to avoid the hassle of manually reopening every few months.

Thanks again.