Looking at the javascript on the site or on their github[0], it indeed looks like they use Google programmable search engine for their results. [0] https://git

Looking at the javascript on the site or on their github[0], it indeed looks like they use Google programmable search engine for their results. [0] https://github.com/txthinking/soso/blob/master/main.js https://github.com/txthinking/soso/blob/master/main.js