DNS speed test

See which public DNS resolver answers fastest from where you are, before you change your network settings.

Benchmark public DNS resolvers

Times are measured from your browser to each resolver's DNS-over-HTTPS endpoint, so they reflect your real path to that resolver. A resolver may show as blocked if its endpoint does not allow cross-origin browser requests, not because it is slow.

Why resolver speed matters

Every web request starts with a DNS lookup. A slow or distant resolver adds a delay to the first connection to every new domain, which is felt most on captive portals and busy guest networks. Comparing resolvers from your actual location helps you pick the fastest one for a site, or confirm that a switch to Cloudflare or Google would help.

How to read the results

Lower is better. The fastest reachable resolver is highlighted.
Results reflect your network and location, so run it on-site.
A resolver marked blocked simply does not allow browser requests, and may still be fast in practice.

Related WiFi tools

DNS issues breaking sign-in?

Captive-portal failures often trace back to DNS and walled-garden rules. Purple ships pre-tested portal DNS and allow-lists for Cisco Meraki, HPE Aruba, Ruckus, and Ubiquiti UniFi.

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