Yandex is a major Russia-based internet company and search engine with the stated mission of answering any question internet users may have. In 2012 Yandex handled the majority of all search traffic in Russia.
Yandex.Metrica is a free website metrics service. Metrica enables site owners to analyze user behavior, evaluate advertising efficiency, and monitor effectiveness indicators. The Yandex.Metrica API provides developers with an interface to automate Metrica services such as acquiring visitation statistics, creating counters, and setting goals.