OK in Chrome, Edge, and Firefox, but the Brave browser doesn't like zeltus.fun (the non-www form) at all. I suspect it has to do with Brave's handling of security issues. Perhaps zeltus.fun doesn't have a proper security certificate, so the initial step in the redirection raises red flags. I've tinkered with Brave's settings, but nothing seems to make any difference.
A fringe problem, to be sure, but just thought I'd mention it.