Russian engine
Google focuses on calculating the PageRank of websites, while the ranking algorithm of Yandex search engine considers the distance between words and the relevance between documents and searchers' queries. If you have trade with Russians, Yandex is a good promotion channel, because Russia has the largest Internet market in Europe, and nearly 9 million people use search engines directly or indirectly.
Compared with the penetration rate of 80% to 90% in other European countries, the internet penetration rate in Russia is only about 70%, and there is still a good room for development in the search engine market. Although the market share of Yandex has not increased steadily in the past few years, Yandex is still the main search engine in Russia in the short term.