DNS Speed Tester

Run a DNS Speed Test and Benchmark latency to top Public DNS servers. Find the fastest DNS for your network and speed up browsing.

DNS Speed Tester — Find the Fastest DNS for Your Network Slow websites, high latency, or unreliable connections? Your DNS provider could be the bottleneck. DNS Speed Tester is a powerful DNS benchmark extension that helps you measure and compare the performance of DNS servers directly from your browser. Every website you visit relies on DNS. A slow DNS provider can increase page load times and make your browsing experience feel sluggish. DNS Speed Tester helps you benchmark popular DNS providers and discover which DNS service performs best from your location. Features • Real-Time DNS Benchmarking Measure and compare DNS response times across multiple providers. • Multiple Testing Protocols Test DNS performance using DNS-over-HTTPS (DoH), DNS-over-TLS (DoT), traditional DNS methods, and network latency checks where supported. • Built-In DNS Providers Compare popular services including Google Public DNS, Cloudflare, Quad9, and curated Privacy, Security, Family, and Ad-Blocking DNS categories. • Custom DNS Servers Add and benchmark your own DNS providers. • Advanced Testing Controls Configure test domains, concurrency levels, timeout limits, and latency calculation methods. • Detailed Performance Insights View live graphs, response times, rankings, and reliability metrics. • Import and Export Settings Backup and restore DNS provider lists and test configurations. • Privacy First No account required. No telemetry. Your settings stay under your control. Perfect For • Finding the fastest DNS server for your location • Comparing DNS providers before switching • Troubleshooting slow browsing performance • Evaluating DoH and DoT services • Network administrators and IT professionals Important Note Browser-based testing is subject to browser security restrictions and available network APIs. For the most accurate DNS benchmarking, including native UDP, TCP, DoH, DoT, ICMP Ping, and system DNS detection, use the DNS Speed Tester desktop or mobile apps. Free. Fast. Accurate. Open Source.