How to register domains?

Question

PHP

The task is to make a clone of ru-tld.ru
How does domain registration take place? Their transfer, etc.?
As I understand it, domain registration is mainly done through resellers, but I did not understand how to do without them.

Answer 1

there is an assumption that only through partners and their api.
But what to answer if the customer asks why not install a dns server with us? Could you shed some light on this issue?

Answer 2

If you want a clone of this site, but don't know how domains are registered, then it's too early for you to clone this site.
If this is an advertisement, then it is unsuccessful, here everyone has a hosting, and half of them have their own))