Keeping track.
WHAT TO DOCUMENT
Every domain on the account
Its type: main, addon, subdomain, alias
Its document root Its database What application runs there Where its DNS is managed
WHY
With more than a few, you will not remember.
An audit of a neglected account frequently finds directories nobody can account for.
WHAT TO AUDIT PERIODICALLY
Every directory in your account Every domain in cPanel Every database
Account for all of them.
WHAT PEOPLE FIND
Old site copies Applications installed to test something Domains added and forgotten Databases for sites removed years ago
WHY IT MATTERS
An abandoned application is never updated and is eventually compromised.
That is the most common route of compromise on accounts with several sites.
WHAT TO DO
Remove what you do not need, after backing it up.