DNS Speed Benchmark

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Benchmark DNS resolvers from the user's network

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SI Score: 80/100
Pricing: One-Time Purchase AI reading, not confirmed
Free plan: Not confirmed
Sign-up required: Not confirmed

benchmarking dns resolver-comparison

Ask SI about DNS Speed Benchmark

Answers use saved listing facts and recorded sources.

What it does

GRC DNS Benchmark compares local and remote DNS-server performance, with a commercial version 2 offered as a one-time purchase.

Choose the resolver candidates and protocols, run DNS Benchmark, then inspect the response-time, tabular and Conclusions views. Version 2 compares IPv4, IPv6, DoH and DoT, with adjustable sample counts and query spacing; it can save a simple ranking as text or CSV. The measurements come from your network location, which is why a universal “fastest DNS” list may disagree. Its ranking also treats cached and uncached performance differently from the old v1. Version 2 is sold as a one-time purchase with future improvements included. Use documentation matching that version; the site is updating older instructions and warns they may not align with v1.

Strengths

Measurements from the user's own network location
Compares local and remote resolver candidates

Best for

Choosing DNS resolvers using local measurements

Sources

GRC's | DNS Nameserver Performance Benchmark (Oct 26, 2026)
DNS Benchmark Operation Walkthrough (Oct 26, 2026)

SI Score

80/100

#1 in Network Tools

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 26, 2026Score ceiling for this evidence: 84/100.

Product usefulness 80

Evidence

Current v2 material and operation guide establish resolver selection, protocol/measurement controls and saved reports with explicit v1/licensing and local-vantage boundaries.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

www.grc.com/dns/benchmark.htm
- PricingAI reading, not confirmedChecked Oct 26, 2026
  The official page advertises DNS Benchmark version 2 for a one-time purchase.
- PlatformsAI reading, not confirmedChecked Oct 26, 2026
  The official page lists these supported platforms.
- Product usefulness evidenceChecked Oct 26, 2026
www.grc.com/dns/operation.htm
- Product usefulness evidenceChecked Oct 26, 2026

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