Why can't I wget torrentz.eu from AWS server?

When I issue wget torrentz.eu i get the following error.

http://torrentz.eu/ Resolving torrentz.eu (torrentz.eu)... failed: Name or service not known.

wget: unable to resolve host address ‘torrentz.eu’

But all others work such as google.com kickass.to etc. Any ideas

Additional info :- Amazon Linux, AWS EC2 instance.