what's the return code when accessing these two websites?
They may block your IP address for some reason.. you can check the HTTP return code by this command:
shell$ wget --spider http://www.cracks.am
Here's an example:
shell$ wget --spider http://www.admon.org/
Connecting to www.admon.org|184.108.40.206|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Please pay attention to the line, it's the code, 2xx means OK, while 4xx means you might get blocked already.