Domain availability.
		
		:param resort.engine.execution.Context context:
		   Current execution context.

def available(self, context):
	
		"""
		Domain availability.
		
		:param resort.engine.execution.Context context:
		   Current execution context.
		"""
		
		try:
			if self.__available is None:
				status_code, msg = self.__endpoint.get("")
				self.__available = status_code == 200
		except:
			self.__available = False
			
		return self.__available