Susan Moskwa, a member of the Google Webmaster Central team, has said that afraid.org, a free DNS provider, has been known to block GoogleBot.
Just found out that your DNS provider (afraid.org) has been known to block Googlebot from certain sites. You're not the only one who's had this problem:http://www.ameir.net/blog/index.php?/archives/26-Site-removed-from-Google-due-to-FreeDNS.html
You may want to contact afraid.org about this.
This can be an issue with other DNS providers. So be careful when picking a DNS provider for your web server, it may make the difference between getting indexed by Google and other search engines or not getting indexed.
This discussion is actually a continuation of GoogleBot having DNS caching issues themselves.
Forum discussion at Google Groups.
