Walery,
Thanks for the great module. It's super easy to use. One thing that I ran into which I did not see documented is that the module does handle .EDU lookups. A warning to this effect would be useful. Right now, the script returns an empty date value. I even think that dying would be appropriate. Here's a sample script which will return a warning because $date is empty.
#!/usr/bin/perl -w
use strict;
use Net::Domain::ExpireDate;
my $date = expire_date('unc.edu');
print "$date";
William