Re: Hey El Reg Peeps, Paper Author Here
Hey hammarbtyp,
I'm looking into that now. The main site with my blog (https://jvroig.com) doesn't have a problem, so it looks like only the subdomains are borked. They're all supposed to have Let's Encrypt certificates.
I'll check into my cpanel to see what's wrong. This is a very low traffic site, so it's only the entry-level Siteground plan. They're supposed to have this done automatically (which is why the main site is ok), but perhaps there's more involved configuration needed for subdomains.
UPDATE: Before actually posting this message, I looked into the panel and it was totally my fault - I forgot to add the "research" subdomain to the Let's Encrypt interface. It's added now.