You need to enter a domain name that you own, which you intend to use on this cPanel account. You'll be able to add as many domain names to this account as you want in the future, but this is the "primary" domain associated with this account.
It's important to understand that this doesn't really "do anything" at this moment; you're just informing cPanel how it will configure this account. If are currently using this domain name at another hosting company, don't worry about it breaking your live site. Just like you can't break google.com by entering google.com here, you can't break any other domain you own by using it here.
Later on, once your account is ready, you will use our nameservers: ns1.slicie.com and ns2.slicie.com to point your domain name to your server. Before you update your DNS, nothing will be public.
There are a lot of rules about what can't be a username, but it's fairly simple.
- Keep the username less than 8 characters in length.
- You can use numbers, just don't start with them.
- No special characters.
Most web hosting companies come with a little formula that is like: example.com -> exampcom , jacob.net -> jaconet
Package and other settings
You don't need to get fancy. Pick "Default" for the package. If you want SSH access for this cPanel account, make sure you click "Select Options Manually" and check the box that says, "Shell Access".
Fill out the form and click "Create".