Refractal.net Cygwin Mirror

Refractal.net Cygwin Mirror appears to be a privately hosted mirror service at cygwin.refractal.net, but there is no public evidence tying it to a formal organization or indicating it is an officially sanctioned Cygwin mirror. It is not listed among the official Cygwin mirror sites maintained by cygwin.com; at best it is referenced in community discussions as a non-official mirror. (stackoverflow.com)