13 Performance Comparison Tools for DNS & CDN

Find out which CDN and DNS providers work better globally

Two essential performance components of any site are CDN & DNS.

Having performant services can help to load the site faster. But how do you know which provider got lower latency and faster DNS resolution?

Multiple benchmarking tools can help you.

Before that, here are a few tips.

When looking at the CDN:

When looking at the DNS:

Let's look at the benchmarking tools…


More than 35 DNS providers are tested from over 200 locations every minute.

Do you know which DNS provider got the lowest resolving time worldwide?

It's Cloudflare!

DNSPerf also records public DNS resolvers such as Google, OpenDNS, Neustar, Norton, etc.

Performance data is available for more than six months, and you can sort by continent or world location.


A free CDN performance tool from Uptrends is a great way to test if your CDN is working properly or not. As the website states, it literally puts control back in your hands. No matter if you’re using Cloudflare, Fastly, KeyCDN, or any other CDN, this tool works for them all.

Here’s what else this tool can do:

All these tests help you identify any problems with your CDN and report back to the provider for possible improvements.

DNS Speed Benchmark

How about finding the performance of the DNS provider for your domain?

That's possible with the DNS speed benchmark tool. You can enter your website URL and choose the continent or country to begin the test.

This will help you to troubleshoot the DNS performance issue globally and also compare the performance between the two URLs.


DNSBlast lets you perform a load test on DNS resolver to find the bug and potential tweaking opportunity to make it better.

It sends multiple types (A, AAAA, SOA, MX, SOA, TXT) query to the resolver and displays the following metrics in results.

It's FREE.

DNS Benchmark

A stand-alone utility is available for Windows and Linux to test local and remote name servers.

DNS Benchmark supports up-to 200 DNS resolver test at once. Some of the features as following.

DNS Benchmark is a portable executable that you mean you don't need to install on PC instead run it from anywhere on the fly.


Find the fastest CDN by country, the continent, or worldwide.

CDNPerf would be handy if your target audience is in a particular country and not sure which CDN performs the best there.


Cloudflare performs the best worldwide, but if you are targetting India, then Tata Communication (Bitgravity) does better.

CDN Latency Test

Above you saw, CDNPerf tells you which CDN performs better. But how about finding latency information about your URL?

CDN Latency Test is useful when you need to check the latency or your domain or compare between two.

Tests are performed in real-time from more than 200 locations around the world.

Ex: below result is of Geek Flare

Compare CDN

Do you just want to compare the CDN performance? Check out Compare CDN, handy to quickly select multiple CDN providers from the list to find out which one performs better.

Cedexis Radar

Cedexis radar report by the country shows you various metrics.

Below an example of CDN response time from China.


CloudHarmony is an excellent tool to find out CDN, Cloud Compute, Cloud Storage, DNS, and PaaS performance.

CloudHarmony tracks a large number of service providers.

The list is long; check out their directory page to get an idea.


DNSMap is not precisely a benchmarking tool but would be handy to verify if your domain is propagating globally as expected.

When you update your DNS record, then it takes time to get it updated worldwide, and this tool will be useful to verify that.

Azure Test

As you can guess from the name – it's only for Microsoft Azure.

The azure test can help to check latency from your location to their data center. An excellent tool to find out which location of data center performs best from your location.

You can select multiple locations to test from, and it will give you latency from all the locations and closest data centers.

Along with latency, you can also test other Azure's services like Storage.

One more Azure testing tool you may want to check out.


A dedicated tool for AWS to perform an HTTP latency test.

CloudPing will be useful if you want to host your website on AWS and not sure which data center performs well from your location.

Choose the location which got the lowest latency.

Choosing the right CDN and DNS provider is always challenging and crucial to online business success.

If you are a blogger or running an e-commerce store, you may consider using SUCURI who provides security protection and performance optimization to your websites.