Bing search is a search engine owned by Microsoft. Its Chinese name is "必应", which means "any request will be answered." Bing is the second largest search engine in the United States, and its market share is second only to Google. Bing is positioned as a global search engine and conducts business in most regions of the world. Bing promotion is a keyword bidding advertisement based on Bing search, which can deliver advertisements to Bing search users around the world.

The Bing Yahoo Search Alliance is a cooperation project between Microsoft and Yahoo on the search business since 2009, that is, Microsoft Bing integrates Yahoo’s core search technology, and Bing will become the algorithmic search and paid search platform for Yahoo’s website.