The kind of company that normally is well within the free tier for years until their product is unexpectedly part of a news cycle.

In all likelihood the site being down right now is actually a PR win.

A lot of non-software businesses probably outsource their websites to some bottom barrel consultant in LCOL countries.

That, or they're such a small business that they never expected one of their random products to be HN hugged to death.

Companies that focus on product and not “investor value” through nice looking working websites

It probably worked fine until today, and will be back to working fine in a few days.