Search engine keyword bidding ranking is a form of online advertising that pays according to the advertising effect. When a customer buys a specified keyword from a search engine provider, when a network user searches for the specified keyword through the search engine, the customer's website will be displayed in front of the search results.

For the sake of understanding, we concretize the object. For example, if Lutuo.com bought the keywords "Guangzhou website construction" and "Guangzhou network promotion" on Baidu, then everyone would search for the keywords "Guangzhou website construction" and "Guangzhou network promotion" on Baidu, and Lutuo. com's website (www.lutuo.net) would be placed at the front of the search results.

Generally speaking, search engine providers can only sell the location of the first page of search results, that is, how many locations can be displayed on the first page, because no customers are willing to spend money to put their websites on the second page. Various data also show that when search engine users can find the results they want on the first page, they pay little attention to the content on the second page.

If multiple customers buy the same keyword, then on the first page, customers' websites will be sorted according to the price they paid, and those who paid more will be ranked first. This is the so-called "bidding ranking"