M. Fioretti wrote:
>
> Everything worked perfectly for months, if not years. Five minutes
> ago, somebody wrote to me that a digifreedom.net URL I suggested him
> to read "doesn't work".
>
...and a few minutes before that someone was editing your domain:
whois digifreedom.net
Domain Name: DIGIFREEDOM.NET
Registrar: TUCOWS INC.
Whois Server: whois.tucows.com
Referral URL: http://domainhelp.opensrs.net
Name Server: A.NS.BYTEMARK.CO.UK
Name Server: B.NS.BYTEMARK.CO.UK
Name Server: C.NS.BYTEMARK.CO.UK
Status: clientDeleteProhibited
Status: clientHold
Status: clientTransferProhibited
Status: clientUpdateProhibited
Updated Date: 16-may-2009
Creation Date: 15-may-2006
Expiration Date: 15-may-2010
>>> Last update of whois database: Sat, 16 May 2009 23:02:28 UTC <<<
Your DNS looks missing/dead. Did someone play with the DNS records/servers?