this would work if we had free DNS. solving DNS to be trully decentralized and free is something for years I wish I had more time to work on and build
key properties:
1. everyone can be a registar. your localhost too
2. blockchain proof of ownership and discovery (certs, not proof-of-work, fast and cheap ledger)
3. everyone can be a CA (self-signed certs pinned in blockchain)
4. no fixation on static IPs (inspired by Cloudflare Tunnels, Tailscale). IPs are ephemeral.
5. blockchain/P2P discovery of domains
but it is all fantasy without real browsers support (Chrome, Safari). 99.999% of traffic is locked there, and both controlled by monopolies Google / Apple. and you cannot even build your own browser (Apple App Store will not allow it). Maybe alternative stores and some proxies / translation layer from normal web to this web would help.
You can’t build your own engine outside of the EU, but you can still build on top of the existing Safari engine. What you’re describing is technically possible.
However, why would a company build something just for a handful of people?