ProxyMania - provides IPv4 proxy for all services (VK, OK, Key collector). As well as IPv6 proxy for Instagram, FaceBook, google+, YouTube, Yandex, Google.
Proxymania.ru - The company provides IPv4 and IPv6 proxies. These proxies are well suited for promotion in social networks: Instagram, FaceBook, google+, YouTube, VK, OK. The main advantages of the service include: optimal load distribution across proxy servers, as well as those. customer support 24/7. Replacement of IPv6 proxy according to a given timer automatically in the personal account. Elite IP addresses not blocked on social networks.