Ah, that's a good question. It's kinda random (except that the name of the solver is "H48"). Setting up that web app required some extra HTTP headers (I explain that in the post), and the easiest way I found to do that without messing up the rest of my website was using a different port. https://h48.tronto.net redirects there too.
Later I looked into a better way to do this, but I could not fully work it out. I use OpenBSD's httpd, which does not support setting extra headers, and relayd. At some point I'll take a look at this again, or I'll move the tool to another domain.
Later I looked into a better way to do this, but I could not fully work it out. I use OpenBSD's httpd, which does not support setting extra headers, and relayd. At some point I'll take a look at this again, or I'll move the tool to another domain.