You need CAcert's certificate, then go to https://bwidawsk.net/
I am trying to be a good netizen and only allow HTTPS traffic on my site. I opted for CAcert because I am both cheap, and their mission, especially at the time, was very appealing to me. However, AFAICT, because of numerous political things, CAcert isn't bundled on most platforms, and so you probably got an error when you visited my site. I am sorry for the inconvenience.