Summary
cherry.yandex.ru has one IP number , which also has a corresponding reverse pointer.
ns1.yandex.ru,
ns1.yandex.com and
ns1.yandex.net point to the same IP.
yandex.ru is a domain controlled by four nameservers at
yandex.ru themselves. Two of them are on the same IP network. Incoming mail for
yandex.ru is handled by one mailserver having a total of three IP numbers. All of them are on different IP networks.
yandex.ru has four IP numbers. All of them are on different IP networks.
cherry.yandex.ru is hosted on a server in Russian Federation.