Quick PSA: You can do this yourself on cloudflare. I've got a sub-domain of my web site, "localhost.my.site". That resolves to localhost. I also added a wildcard, "*.localhost.my.site", which also resolves to localhost. It's pretty easy to do, and a handy trick. I figure some one probably turned this into a blog post, but this way you don't have to rely on some one else's stuff going down. I also use it for my local domain, cause I don't want to bother running a local DNS server.