If you type the URL in a wallet that doesn’t support it, it won’t do anything either. You need a wallet that has their code implemented so it knows that this is a Zilliqa’s unstoppable domain and that it should look for it at their blockchain for the address and/or the IP of the website server.
So it needs a supported browser and wallet for it to work.
From their FAQ:
Yes, but only for holding your blockchain domains. In order to send and receive cryptocurrency using your domain, you will use wallets that have integrated our software
You will need to use a browser extension initially. We are working to integrate browsers natively