"We don’t persist logs for our users without accounts and configured networks, I’m not sure Google makes the same statement."<p>What FUD. Was this statement from the FAQ[0] not explicit enough? "With Google Public DNS, we collect IP address (only temporarily) and ISP and location information (in permanent logs) for the purpose of making our service faster, better and more secure. Specifically, we use this data to conduct debugging and to analyze abuse phenomena. After 24 hours, we erase any IP information."<p>Or what about this more detailed explanation[1] on the linked privacy page? [Originally posted, but removed on account of formatting issues]<p>If you don't know the answer to a question about a competitor's service, the appropriate, ethical thing to say is, "I don't know." When you say, "We do <good thing X>, I don't know if they do," you are by your omission sowing the seeds of fear, uncertainty, and doubt in the audience, for your economic reasons.<p>[0] <a href="http://code.google.com/intl/en-EN/speed/public-dns/faq.html#privacy" rel="nofollow">http://code.google.com/intl/en-EN/speed/public-dns/faq.html#...</a><p>[1] <a href="http://code.google.com/intl/en-EN/speed/public-dns/privacy.html" rel="nofollow">http://code.google.com/intl/en-EN/speed/public-dns/privacy.h...</a>