4 ms·

By paying for API access to other search engines. Yahoo used to offer that publicly but eventually shut the service down (but kept DDG as a legacy customer)

• jazoom 9y ago
  That's interesting. I wonder the cost.
  • mtmail 9y ago
    Approximately $1 per 1000 requests https://www.programmableweb.com/news/yahoos-new-search-api-pricing-compared-to-google-bing/analysis/2014/11/24 https://www.programmableweb.com/news/yahoos-new-search-api-p...
    • jazoom 9y ago
      Thanks for the link!