Several names, one place.
WHY YOU MIGHT
Defensive registrations of similar names A previous domain you still own Regional variants A rebrand where the old name should still work
HOW TO DO IT
Point the additional domain's DNS at your server, then add it in cPanel as an addon domain or an alias.
AN ALIAS
Serves the same site as the main domain, at a different name.
Correct for defensive registrations and old names.
AN ADDON DOMAIN
Serves a different site from its own directory.
Correct when the domains are genuinely separate.
THE SEO CONSIDERATION
Several domains serving identical content splits ranking signals.
Redirect the alternatives to your main domain with a permanent redirect rather than serving the same content at each.
That keeps the ranking consolidated.
CERTIFICATES
Every domain and alias needs coverage. Run AutoSSL after adding one.
Each domain can have its own mailboxes, or not. Decide, and set MX records accordingly.
A domain with no MX records receives no mail, which may be what you want.
