What cms does bitrefill.com run on?

Question

CMS

what cms does bitrefill.com run on?

Answer 1

You probably wanted to ask "How to do the same".
It's not about the CMS. And how to cook it.
Just by setting yourself the same CMS, you will not get anything.
It will have to be finished for a long time and tediously to a state similar to your link.
For all that, by installing a completely different CMS, you can get the same result. And perhaps even easier and faster. And perhaps not.
PS:
I guess there is no CMS at all. But that doesn't matter either.
It is the ability to use the tool that matters, not the tool itself.