We propose a dedicated DNS Anonymity Service which protects users' privacy. The design consists of two building blocks: a broadcast scheme for the distribution of a "top list" of DNS hostnames, and low-latency Mixes for requesting the remaining hostnames unobservably. We show that broadcasting the 10,000 most frequently queried hostnames allows zero-latency lookups for over 80 % of DNS queries at reasonable cost. We demonstrate that the performance of the previously proposed Range Queries approach severely suffers from high lookup latencies in a real-world scenario.

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