Visitor – SEO WIKI
A visitor is a user who has visited a site for a given period of time. Yandex.Metrica identifies visitors by cookies.
If the user clears the cookie and enters the site again, he will be counted as a new visitor. Even if one user visits the site from three different devices connected to the same Wi-Fi network, Metrica will consider this as three unique visitors.
If he doesn’t clear it and visits the site after a certain time, then it will be considered that one user made two visits.
In Yandex.Metrica, visitors can be viewed on the summary page; In Google Analytics, visitors are presented on the audience overview page