DNS Resolution Speed Benchmark

Test the lookup response latency of your domain name system (DNS) resolver against well-known public resolvers such as Cloudflare, Google, and Quad9.

What Is DNS and Why Does DNS Speed Matter?

The Domain Name System (DNS) functions as the internet's phonebook, translating human-friendly domain names (like wrldu.com) into numerical IP addresses (like 104.21.45.18) that computers use to route packets. Every website you visit begins with a DNS lookup.

Popular Public DNS Resolvers

  • Cloudflare (1.1.1.1 & 1.0.0.1): A widely used public resolver that publishes a privacy-focused logging policy. Speed varies by location and network, so test it from your own connection.
  • Google Public DNS (8.8.8.8 & 8.8.4.4): A widely used public resolver with DNSSEC validation and broad global coverage.
  • Quad9 (9.9.9.9): A privacy-focused public resolver that blocks known malicious domains by default.
  • OpenDNS / Cisco Umbrella (208.67.222.222): Established DNS service offering optional adult content filtering and phishing protection.