Business and Pro plans host more than one website (3 and 10 respectively); Starter is for one. Each extra site is an addon domain in cPanel — for all practical purposes its own website, with its own folder, email accounts, database and SSL certificate.
- Point the new domain at us first: at the domain's registrar, set the nameservers to
ns1.ukbox.hostandns2.ukbox.host. (For security, cPanel will only accept a domain whose nameservers already point at our platform — this stops anyone adding a domain they don't own.) - In cPanel open Domains → Create a New Domain, enter the domain and choose its folder (the default is fine).
- Give it up to a few hours for DNS to settle. SSL is issued automatically once it resolves.
You'll notice cPanel also creates a subdomain like newdomain.co.uk.yourmaindomain.co.uk. That's just how cPanel wires an addon internally — visitors never see it and it doesn't affect the site.
Rather we did it? Open a ticket with the domain name and we'll set it up. If you've hit your plan's website limit, upgrading is a couple of clicks in the client area and pro-rated.