Toolzer — Free Online Tools

DNS Speed Test

Real-time DoH benchmark from your browser. No install. No data collected.

Find your fastest DNS

Real-time DoH benchmark from your browser. No install. No data collected.

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About this DNS Speed Test

Benchmark the world's most popular public DNS resolvers — Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9 9.9.9.9, AdGuard and NextDNS — directly from your browser using DNS-over-HTTPS. The tool sends several real DNS-over-HTTPS queries to each provider, measures the round-trip time for each response, and reports the minimum, average and maximum latency along with any packet loss, so you can pick the fastest DNS resolver from your current network. A faster DNS means domain names resolve sooner, pages start loading quicker and streaming, gaming and video calls connect with less delay — even when your bandwidth stays the same. All queries run client-side over HTTPS, nothing is stored, and the result is always fresh for your ISP, region and device.

How to use DNS Speed Test

Open the page, enter the input you want to check, and the result appears immediately above — there is nothing to install, no account to create, and no popup to dismiss. Every Toolzer utility is designed to give you the answer on the first screen and let you copy or share it in one click. If the result looks unexpected, run the test a second time: transient network conditions, browser extensions, and corporate proxies can all affect single-shot measurements.

Every tool on Toolzer is built to work on desktop and mobile, including the latest versions of Chrome, Edge, Firefox, Safari, and Brave. Results are rendered directly in your browser whenever possible, so the page stays responsive even on slow connections. When a server lookup is required, the request is proxied through Toolzer's edge so the third-party service never sees your IP address.

Privacy & how this tool works

Toolzer is a privacy-first toolbox: the page is served as a static, minified bundle with long-lived cache headers, so repeat visits are essentially free for both you and our servers. Inputs you type — text to format, passwords to generate, URLs to inspect — stay on your device unless an explicit server lookup is required. We do not sell data, we do not run third-party advertising trackers, and we do not require an account to use any tool.

Frequently asked questions

Which DNS server is fastest for me?+

It depends on your ISP and location. Cloudflare (1.1.1.1) and Google (8.8.8.8) are typically fastest globally, but Quad9, AdGuard or NextDNS may win on your specific network — run the test and pick the resolver with the lowest average latency.

Will a faster DNS actually make my internet faster?+

A faster DNS shortens the time between typing a URL and the first byte arriving, so pages feel snappier and connections open faster. It does not increase your bandwidth (Mbps), but it does reduce perceived latency.

How do I change my DNS after the test?+

On Windows / macOS / Linux, open your network adapter settings and set the preferred DNS to the winner (for example 1.1.1.1 or 8.8.8.8). On iPhone / Android, set it under Wi‑Fi settings or Private DNS. You can also configure DNS on your router to cover the whole home network.

Is the DNS speed test private and free?+

Yes. The tool is 100% free, requires no signup and only sends standard DNS-over-HTTPS queries to public resolvers. No logs, no tracking and no data is stored on Toolzer.

Do I need to create an account to use Toolzer?+

No. Every utility on Toolzer is free, anonymous, and works in any modern browser without registration. You will never see a paywall or a forced sign-up flow — the goal is to give you the answer on the first screen and let you move on.

Is Toolzer safe to use with sensitive inputs?+

Yes. Whenever the tool can produce an answer entirely in the browser — password generation, JSON formatting, regex testing, hashing, text counting — the data never leaves your device. When a server lookup is unavoidable (DNS, WHOIS, geolocation), the request is proxied through Toolzer's edge so the upstream service never sees your real IP address.

Does Toolzer work on mobile?+

Yes. The interface is fully responsive and works on iOS Safari, Android Chrome, Samsung Internet, and every other up-to-date mobile browser. You can pin the page to your home screen for one-tap access.

Can I link to or bookmark a result?+

Yes. Every Toolzer page has a clean, permanent URL you can bookmark, share, or paste into a ticket. Results are generated client-side on each visit, so the link always shows fresh data instead of a stale screenshot.