Good catch.
I also tried exch[.]cc, and it is not redirecting. It shows the same page but with exch[.]cc instead of exch.cx
I believe this is confusing, users may think one of them is someone else impersonating exch.cx. Also, it may hurt SEO, as we have duplicated pages.
All domains should be redirected to the main one
exch[.]
cc is a phishing link and
does not belong to eXch anymore, don't be scammed by using it! (By the way can you please edit the links in your message?)
I didn't know. Thanks for explaining. I already edited my post to remove the malicious link.