The www subdomain gives me the same message now. Dunno maybe it's the way it was dismantled and I happened to pick the precise moment. I don't know if I can retrieve past DNS translations, but if I could probably you could too.
Anyway from
whois.domaintools.com I get the address
69.163.167.61. But currently it displays a "Site Temporarily Unavailable" message ("bad_httpd_conf"), so it may be ReplacementDocs after all.