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On the recordRead 3 Oct 202614 facts
GRC DNS Benchmark
Laguna Hills, California, USA
Plans and prices
DNS Benchmark v2
$9.95one-time
Lifetime use · future improvements included
Read 3 Oct 2026 · grc.com
On the record
- Company
- Gibson Research Corporation is owned and operated by Steve Gibson, and the site identifies Laguna Hills, California, USA.grc.com · read 3 Oct 2026
- DNSSEC
- The software identifies DNSSEC-aware resolvers by coloring them green.grc.com · read 3 Oct 2026
- Freeware availability
- GRC says it stopped offering the original v1 freeware because its resolver ranking was no longer correct for the modern Internet.grc.com · read 3 Oct 2026
- Measurement accuracy
- The default benchmark runs 250 query sets per resolver, and the sample count can be changed to 1x, 5x, 10x, 20x, 50x, or 100x.grc.com · read 3 Oct 2026
- Privacy and security
- GRC's privacy policy says its e-commerce system is server-side without browser scripting or cookies and that purchasing information is stored encrypted.grc.com · read 3 Oct 2026
- Protocols
- Version 2 benchmarks IPv4, IPv6, DNS over HTTPS, and DNS over TLS resolvers side by side.grc.com · read 3 Oct 2026
- Purpose
- DNS Benchmark measures the performance of local and remote DNS nameservers to help select fast resolvers for a network and location.grc.com · read 3 Oct 2026
- Resolver limit
- The benchmark can test up to 500 resolvers at once.grc.com · read 3 Oct 2026
- Resolver list
- The built-in list includes 126 IPv4, 43 IPv6, 81 DoH, and 60 DoT resolvers, while a custom list builder scans 4,909 possible resolvers.grc.com · read 3 Oct 2026
- Results
- Benchmark results can be saved as a text file or a spreadsheet-readable CSV file.grc.com · read 3 Oct 2026
- Support
- GRC provides technical support through email and points users to its searchable web forums for product questions.grc.com · read 3 Oct 2026
- Supported systems
- Version 2 runs on Windows 7, 8, 10, 11, and later, and also runs on Linux under WINE.grc.com · read 3 Oct 2026
- Who it is for
- The maker describes the tool as a way to select the fastest DNS resolvers for a user's network and location.grc.com · read 3 Oct 2026
