# One or two nameservers?

DevFeed: [One or two nameservers?](<https://devfeed.tech/articles/one-or-two-nameservers-26233.md>)

Original publisher: [Read original article](<https://blog.apnic.net/2026/09/15/one-or-two-nameservers/>)

Author: Geoff Huston

Published: 2026-09-15T06:01:49Z

Content type: article

Language: en

Sources: [APNIC Blog](<https://devfeed.tech/sources/apnic-blog.md>)

Topics: [Internet](<https://devfeed.tech/topics/internet.md>), [Query (disambiguation)](<https://devfeed.tech/topics/query.md>), [Server](<https://devfeed.tech/topics/server.md>), [Caching](<https://devfeed.tech/topics/caching.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [africa](<https://devfeed.tech/tags/africa.md>), [article](<https://devfeed.tech/tags/article.md>), [china](<https://devfeed.tech/tags/china.md>), [dns](<https://devfeed.tech/tags/dns.md>), [europe](<https://devfeed.tech/tags/europe.md>), [experiment](<https://devfeed.tech/tags/experiment.md>), [india](<https://devfeed.tech/tags/india.md>), [internet](<https://devfeed.tech/tags/internet.md>), [ipv4](<https://devfeed.tech/tags/ipv4.md>), [ipv6](<https://devfeed.tech/tags/ipv6.md>), [measurement](<https://devfeed.tech/tags/measurement.md>), [measurements](<https://devfeed.tech/tags/measurements.md>), [recursive-resolver](<https://devfeed.tech/tags/recursive-resolver.md>), [repeat](<https://devfeed.tech/tags/repeat.md>), [responses](<https://devfeed.tech/tags/responses.md>), [server](<https://devfeed.tech/tags/server.md>), [tech-matters](<https://devfeed.tech/tags/tech-matters.md>)

## AI overview

This article reports an experiment testing whether serving a DNS zone with two authoritative dual-stack nameservers changes repeated queries. Compared with one nameserver, two nameservers increased the single-query completion rate from 58% to 71% and reduced the average queries per test from 3.43 to 2.57.

## Source excerpt

Do multiple dual-stack nameservers increase or decrease repeat DNS queries? The results of this experiment were a complete surprise.