Removing the provider's branding.
WHAT CAN BE BRANDED
Nameservers, on your own domain cPanel, with your logo and colours where your plan permits The client area, if you use a billing system Support, which comes from you
WHAT CANNOT
The underlying infrastructure. A client who investigates will find where the server actually is.
That is fine. You are not concealing anything improper; you are presenting your own service.
CPANEL BRANDING
WHM offers theme and branding controls. Adding your logo makes the experience feel like yours.
Keep it simple. Heavy customisation breaks with cPanel updates.
WHAT MATTERS MORE THAN BRANDING
Support that comes from you, promptly, in your name.
A client who receives a fast helpful reply from you does not care whose server it is.
WHAT NOT TO CLAIM
Owning infrastructure you do not Certifications you do not hold Capacity you do not have
Overclaiming is discovered eventually and it damages you.
THE HONEST POSITION
You provide hosting. Where the servers are is a commercial arrangement, and not something you need to advertise or conceal.