Search engines have become the window for the public to acquire information and an important channel to conduct online marketing. Search engine optimization (SEO) is also increasingly recognized and valued by more and more websites and enterprise users. As the most important exhibition activity in the global search engine field, the Search Engine Strategy Conference (SES) initiated and organized the first (2007) Chinese Search Engine Optimization Contest, namely the "Duhugou SEO Contest", on the eve of the 2007 China Xiamen Station.
This contest selected the new word "Duhugou", which had no search record in all major search engines before the contest, as the competition keyword, and used the ranking situation of the participating websites searched by "Duhugou" in the three major search engines - Baidu, Yahoo! Chinese, and Google Chinese - as the evaluation standard.