So you want to host a website. On the web!
You have a few questions that need to be answered:
We have so many domains. a lot of them can be found on the core-infra dns list https://git.devhack.net/devhack/tf-external-dns/ and a few more can be found on our own powerdns server http://pdns.devhack.internal/dashboard/
because of how web proxy forwarding works, you need to configure the DNS to point to one of our existing web forward proxies (probably) and then configure the proxy to point to the final location of your website.
if you're merely deploying static html, chucking it in a git repo with something to get it working with git-pages or our nix mothership deployment scheme would be the best way to go about it. or if you're fine with a tilde dir, throwing your files on aleph works great and has the added benefit of gopher and gemini hosting, too!
If you want to pre-render with some sort of templating system like hugo, deploying to our git with runners running the pre-render and then leaning on git-pages is definitely the way to go
If you need to do complicated things with your webapp, you're going to need to run code consistently somewhere. Now you need to figure out how you want to go about that