read this on namecheap:
This is to let you know that on May 23, 2013 (Thursday) the registry of .CC and .TV domains will be processing scheduled maintenance.
The time frame for the maintenance is as follows:
5.00 PM – 7.00 PM EST (22:00 – 00:00 UTC/GMT)
During the Registry system maintenance, the following services will not be available:
Domain Availability Checks;
Domain Registrations;
Domain Renewals;
Domain Updates;
WHOIS services