Nolan Algar, Founder

Nolan Algar

Founder & DNS Technology Researcher

Nolan is a network engineer and web developer with over 8 years of experience in DNS infrastructure, network performance optimization, and frontend development. He built DNS Speed Test to help everyday users understand and improve their internet speed by choosing the right DNS resolver. Nolan holds a background in computer science and has worked with ISPs and hosting providers on DNS optimization projects.

Our Mission

Everyone deserves a fast internet experience. DNS speed is one of the few performance bottlenecks that regular users can fix themselves, instantly and at no cost. We built this tool to make that process as simple as possible. Run a test, see which resolver is fastest, change two numbers in your settings, and your browsing feels snappier. No technical knowledge required.

Why DNS Speed Matters

Every time you visit a website, your device first needs to look up the IP address using DNS. That lookup typically takes 5 to 100 milliseconds, but not all DNS resolvers are created equal. A fast resolver completes the process in under 15 milliseconds. A slow one can take 50 or more. Multiply that difference across the dozens of domains a modern webpage pulls from — scripts, fonts, images, analytics — and a slow resolver can add a full second or more to your page load time.

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Instant Testing

Test 17+ DNS servers in seconds with real-time results

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Global Coverage

Servers from Cloudflare, Google, Quad9, and more

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Privacy Focused

No data collected, everything stays in your browser

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Works Everywhere

Desktop, tablet, and mobile — no installation needed

How It Works

Our tool uses DNS-over-HTTPS (DoH) to test DNS servers directly from your browser. This modern protocol encrypts DNS queries, providing both speed and privacy. We measure response times using the browser's high-resolution performance.now() API, which provides microsecond precision. All tests run simultaneously for instant results.

Our Technology

Built with

HTML5 CSS3 Vanilla JavaScript DNS-over-HTTPS Web APIs Chart.js No Frameworks

Open Source

DNS Speed Test is built with transparency in mind. Our code is clean, follows modern web standards, and runs entirely in the browser. There is no server-side code, no databases, and no user tracking. We believe in building tools that respect user privacy and work without unnecessary dependencies.

Contact

Have questions, suggestions, or want to collaborate? Visit our Contact page or reach out at support@dnsbench.pp.ua.

How We Test DNS Servers

Our DNS speed test measures the performance of 17+ public DNS resolvers by sending DNS-over-HTTPS (DoH) queries to each server and measuring round-trip time using the browser's high-resolution performance.now() API. We test Cloudflare 1.1.1.1 (1.1.1.1), Google DNS (8.8.8.8), Quad9 (9.9.9.9), OpenDNS (208.67.222.222), AdGuard DNS, NextDNS, Mullvad DNS, and other major resolvers.

Each test runs 3–5 queries per server to account for network variance. Results include average response time, jitter, and success rate. All tests execute client-side in your browser — no data is sent to external servers. This approach measures real-world DNS resolution performance from your network location, accounting for factors like geographic distance, network congestion, and anycast routing.

We also evaluate DNS providers on privacy policies, DNSSEC support, logging practices, and protocol availability (DoH, DoT, DNSCrypt). Our recommendations are based on objective benchmark data, not sponsored placements.