How to clean the database on the site from unnecessary garbage?

M

modx10292019-09-03 09:14:02

Joomla

modx1029, 2019-09-03 09:14:02

Hello. The question is. Joomla site.
The website was made by a website development company.
The task was given to make 4 typical subdomains with different information.
1.site.ru
2.site.ru
...
4.site.ru
The menu, footers and some information are duplicated on all subdomains.
What the company did - they created one subdomain 1.site.ru
And after doing the second subdomain, the third, the fourth, they simply copied the database and the site from the first subdomain from the first and put it on others. And as a result, now links from other domains are opened on each of the subdomains. Of course, they are not visible on the site, but if you look at programs or take some URL from the database, for example, from subdomain a, then it easily opens on subdomain b. Tell me how to be, what to do.