I should have been more specific. Registering is indeed pretty easy. But using a domain is quite difficult without a lot of background knowledge. Everyone under

I should have been more specific. Registering is indeed pretty easy. But using a domain is quite difficult without a lot of background knowledge. Everyone understands how phone numbers work well enough to use them, and there are lots of systems in place to walk you through the process whenever you need to change phones (or numbers), etc. Connecting a domain name to a piece of software running on any of your devices should require nothing more than a quick OAuth flow to your domain provider to connect a tunnel to the application. You shouldn't need to understand DNS, TLS, HTTP, ports, ip addresses, NAT, CGNAT, etc in order to self-host simple programs like URL shorteners quickly and securely.