The site design was developed by the Studio designer (not me).
This is the simplest CMS written by me while working in the Studio NA-GO.
You can visit the website

The main site has subdomains for different cities.
All unique information for each city (phone, address, map, etc.) can be changed from the admin panel of this CMS.

Each city has its own settings.
CMS accesses the database, and based on the id of the city determines what to display to the user.

CMS also checks sitemap and robots files (their presence).