this site is experiencing some outages these days, but I'm working to address it. Don't worry though: the site is not damaged and it will not go offline. I intend to keep this online for years still.
As for the actual cause, it's spam... It looks like some of my other sites are (also) getting hit hard by spammers, and the anti-spam plugins I am using are working hard to block them. They are in fact working so hard that they consume all the server resources. When that happens, all my sites go dark, as does my mood.
As I said, I'm working to address it. Wish me luck.