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DNS Benchmark


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This package was approved by moderator gep13 on 5/9/2019.


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Screenshot of DNS Benchmark

What is GRC's DNS Benchmark?
GRC's DNS Benchmark performs a detailed analysis and comparison of the operational performance and reliability of any set of up to 200 DNS nameservers (sometimes also called resolvers) at once. When the Benchmark is started in its default configuration, it identifies all DNS nameservers the user's system is currently configured to use and adds them to its built-in list of publicly available “alternative” nameservers. Each DNS nameserver in the benchmark list is carefully “characterized” to determine its suitability — to you — for your use as a DNS resolver. This characterization includes testing each nameserver for its “redirection” behavior: whether it returns an error for a bad domain request, or redirects a user's web browser to a commercial marketing-oriented page. While such behavior may be acceptable to some users, others may find this objectionable.

The point made above about the suitability — to you — of candidate nameservers is a crucial one, since everything is about where you are located relative to the nameservers being tested. You might see someone talking about how fast some specific DNS nameservers are for them, but unless you share their location there's absolutely no guarantee that the same nameservers would perform as well for you. ONLY by benchmarking DNS resolvers from your own location, as this DNS Benchmark does, can you compare nameserver performance where it matters . . . right where you're computer is.
When the benchmark is run, the performance and apparent reliability of the DNS nameservers the system is currently using, plus all of the working nameservers on the Benchmark's built-in list of alternative nameservers are compared with each other.

Results are continuously displayed and updated while the benchmark is underway, with a dynamically sorted and scaled bar chart, and a tabular chart display showing the cached, uncached and “dotcom” DNS lookup performance of each nameserver. These values are determined by carefully querying each nameserver for the IP addresses of the top 50 most popular domain names on the Internet and also by querying for nonexistent domains.

Once the benchmark finishes, the results are heuristically and statistically analyzed to present a comprehensive yet simplified and understandable English-language summary of all important findings and conclusions. Based upon these results, users may choose to change the usage order of their system's own resolvers, or, if alternative public nameservers offer superior performance or features compared with the nameservers currently being used, to switch to one or more alternative nameservers.


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To install DNS Benchmark, run the following command from the command line or from PowerShell:

C:\> choco install dns-benchmark

To upgrade DNS Benchmark, run the following command from the command line or from PowerShell:

C:\> choco upgrade dns-benchmark


  • tools\chocolateyinstall.ps1 Show
    $ErrorActionPreference = 'Stop'
    $packageName = 'dns-benchmark' 
    $toolsDir    = $(Split-Path -parent $MyInvocation.MyCommand.Definition)
    Install-ChocolateyShortcut -shortcutFilePath "$ENV:Public\Desktop\DNS Benchmark.lnk" -targetPath "$toolsDir\DNSBench.exe"
    Install-ChocolateyShortcut -shortcutFilePath "$ENV:ProgramData\Microsoft\Windows\Start Menu\Programs\DNS Benchmark.lnk" -targetPath "$toolsDir\DNSBench.exe"
  • tools\chocolateyuninstall.ps1 Show
    $ErrorActionPreference = 'Stop'
    $packageName= 'dns-benchmark' 
    Remove-Item "$ENV:Public\Desktop\DNS Benchmark.lnk" -Force -ErrorAction SilentlyContinue
    Remove-Item "$ENV:ProgramData\Microsoft\Windows\Start Menu\Programs\DNS Benchmark" -Force -ErrorAction SilentlyContinue
  • tools\DNSBench.exe Show
    md5: AF51A7986FB95093BB1D65A3B7ECB98A | sha1: 8A19710E3DE2894E394484C08F777D997D02A5E5 | sha256: A9BC505F668A6AF598681A0EB1BE64B484D869A48B5991107827A9F0052CFF45 | sha512: 07895BE0E31D6F91AD05A41FE8AE122BA5D7CD648A9714A5096D41501C85532E8C7B238AF177EFB79E2E35B5AE3507A7BAD5DA8B563F416429B0307A1508B0FF
  • tools\DNSBench.exe.ignore
  • tools\LICENSE.txt Show
    ============================== DNS Benchmark ==============================
    From inside the DNS Benchmark program under the Introduction tab:
    Please Note: This program is Copyright (c) 2010 by Gibson Research Corporation -- ALL RIGHTS RESERVED. This program is FREEWARE. Although it may not be altered in any way, it MAY BE FREELY COPIED AND DISTRIBUTED onto and through any and all computer media in ANY form or fashion. You are hereby granted the right to do so.
    ============================== DNS Benchmark ==============================
  • tools\VERIFICATION.txt Show
    ============================== DNS Benchmark ==============================
    bcurran3 downloads and packages the executable for Domain Name Speed Benchmark from:
    ============================== DNS Benchmark ==============================

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

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This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • Steve Gibson


Copyright (c) by Gibson Research Corp.


Version History

Version Downloads Last updated Status
DNS Benchmark 1.3.6668.0 560 Sunday, April 22, 2018 approved
DNS Benchmark 1.2.3925.20161106 517 Sunday, November 6, 2016 approved
DNS Benchmark 1.2.3925.20160918 270 Monday, September 19, 2016 approved
DNS Benchmark 1.2.3925.0 328 Saturday, April 16, 2016 approved

Discussion for the DNS Benchmark Package

Ground rules:

  • This discussion is only about DNS Benchmark and the DNS Benchmark package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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  • Tell us what you love about the package or DNS Benchmark, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
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