What CMS was used to make the 1popov.ru website?

Question

CMS

Good afternoon !
Tell me on which CMS this site was made, I like how they implemented the ordering and payment modules.
website: 1popov.ru

Answer 1

This is a set of static html pages, and all the rest (affiliate programs, etc.) are self-written, or rather, just PHP files

Answer 2

Popov has all the sites self-written

Answer 3

Yes, this is self-written, if you are interested in what else is used there, I’ll tell you - Debian, PHP 5.3, Nginx 1.6.2, Lightbox, JQuery, Yandex.Metrika