Periodic issues connecting to https://fedia.io

Hi,

Every so often, when I try to browse to https://fedia.io through my browser bookmark, I receive an error resolving the domain. Firefox suggests https://www.fedia.io but navigating there gives me an HSTS error (picture attached, hopefully.)

Usually, if I check back 15 minutes or so after this occurs, https://fedia.io will load normally, and then https://www.fedia.io actually loads the landing page for:

Books.Infosec.Exchange A Bookwyrm Instance for Infosec.Exchange

I'm not quite sure if this is an issue with my network or a problem with the instance itself. However, I thought I would report it. Let me know if there is any other information I can provide that will be helpful in figuring this out.