"Raw Performance" is the speed when querying each nameserver directly "Resolver Simulation" simulates the algorithm of public DNS resolvers and shows the performance from the resolver's point of view "Uptime" shows the real uptime of DNS provider.

Top 7 Best DNS Benchmarking Tools - TechGYD.COM Apr 23, 2019 Useful DNS Speed Test Resources To Fix Any Network Issues A DNS speed test will allow you to test how long it takes for authoritative DNS servers to respond to a request from your domain for all types of 1000base t-devices. This provides you with information regarding performance delays, general troubleshooting and hosting providers.

Nov 09, 2018

Nov 09, 2018 How to Test DNS Server Response Time to Troubleshoot Site

Using our free utility you can actually quickly test speed and latency from your location to all Microsoft data center end points around the world. The application will display which GEO data center you are receiving from DNS and then test all known data centers to make sure you are receiving the best recommendation from GEO DNS.

DNSleaktest.com offers a simple test to determine if you DNS requests are being leaked which may represent a critical privacy threat. The test takes only a few seconds and we show you how you can simply fix the problem. Using our free utility you can actually quickly test speed and latency from your location to all Microsoft data center end points around the world. The application will display which GEO data center you are receiving from DNS and then test all known data centers to make sure you are receiving the best recommendation from GEO DNS. A DNS speed test will allow you to test how long it takes for authoritative DNS servers to respond to a request from your domain for all types of 1000base t-devices. This provides you with information regarding performance delays, general troubleshooting and hosting providers. Azure Speed Test 2.0. Measuring the latency from your web browser to the Blob Storage Service in each of the Microsoft Azure Data Centers.