http://xmrhfasfg5suueegrnc4gsgyi2tyclcy5oz7f5drnrodmdtob6t2ioyd.onion/onion-services/setup/index.html
Therefore, you need to configure your web server so it doesn't give away any information about you, your computer, or your location.
That is not an easy task, and these resources will help on how to make this possible: Operational Security . Onion services best practices by Riseup Collective.