Global SEO is the method of optimizing the content in your website for multiple locations and audiences around the globe.
It requires not much of a difference to your SEO strategy right now, except that we will need to publish content that will work in different languages that your target audience speak, and for regions where your website visitors come from, and most notably, for the most popular search engines in such region or country.
In essence, search results appear differently for users in China that generally utilize Baidu, or searchers in Russia that prefer Yandex, or search users in Japan who mostly use Yahoo and searchers in South Korea who are avid fans of the search engine Naver.
So, these differences in search results and search engines, in particular, mean that our global SEO efforts for your website must not just focus on optimizing your website for Google even though the big G is the leading search engine worldwide.