Which system to choose for creating referrals for the site?

Question

CMS

To make a link for a site of the form site.ru/refer1, by which it will be possible to track transitions to the main site from a specific source. For example, a VKontakte group places this link, a person clicks on it, gets to the main page of my site and his transition is fixed. By the way, the site is on WordPress, maybe there are some plugins ...

Answer 1

To do this, they came up with Yandex metrics and Google Analytics!
No additional modules needed