Billed as an alternative to Google, DuckDuckGo has increased traffic by 33% since the NSA news broke in early June, reports CNBC. The search engine doesn't track search traffic. Government inquiries include Yahoo at between 12,00 and 13,000 requests; Apple, between 4,000 and 5,000; Facebook, 9,000 to 10,000; and Microsoft 6,000 to 7,000. The information the government requests does not get saved in cloud servers. Serving relevant ads based on searches does not require the engine to save the data.