Domain
aka: domain nameaka: url
The Quick Version
The human-readable address people type to reach your site.
How it actually works
A domain is a name you rent from a registrar, mapped through DNS to the servers that hold your site. It is separate from hosting: you can move hosts and keep the domain, or change domains and keep the host.
Why does it matter?
yourbusiness.com looks like a business. random-string-9f3.hosting.app does not.
Example
landscapepro.com