DNS Benchmark - Compare Resolvers

Compare DNS resolver speeds from your browser. Test Cloudflare, Google, Quad9, OpenDNS, AdGuard and more.

How it works: This tool measures round-trip time to each DNS provider using cross-origin resource probes (TCP connect + TLS + server response). Results are averaged over multiple samples. ⚡ Direct IP probes go straight to the resolver with no external DNS dependency. 🔗 Hostname probes resolve via your OS DNS first. All results correlate strongly with actual resolver proximity.

DNS Resolvers

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Samples per resolver: Timeout: ms

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Results

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Run the benchmark to compare DNS resolver speeds from your location

How the DNS benchmark works

Every time you open a website, your device first asks a DNS resolver to translate the name into an IP address. A slow resolver adds a small delay to everything you do online. This tool measures, from your own browser and location, how quickly popular public resolvers such as Cloudflare, Google, Quad9, OpenDNS and AdGuard respond, so you can choose a faster one.

Because it runs from where you are, the results reflect your real network rather than a server in another country. If you also want to check whether you are behind CGNAT, try the Network Inspector, or browse all our free South African tools and calculators.

Frequently asked questions

What is a DNS resolver?

It is the service that turns a website name like example.co.za into the numeric IP address your device needs to connect. Your internet provider gives you one by default, but you can switch to a public resolver that may be faster or offer extra privacy and filtering.

Which DNS server is fastest in South Africa?

It depends on your location and provider, because speed is about how close the resolver's nearest server is to you. Cloudflare, Google and Quad9 all run local points of presence and usually perform well, but the only way to know your fastest is to test from your own connection, which is what this tool does.

Will changing my DNS make my internet faster?

It will not increase your line speed, but a faster resolver can make pages start loading more quickly, especially the first time you visit a site. The effect is small but noticeable on slower connections.

Is it safe to change my DNS resolver?

Yes. Reputable public resolvers from Cloudflare, Google, Quad9 and others are safe and widely used, and some also block malware or ads. You can change back to your provider's default at any time.

Can I use a faster resolver on my whole network?

Yes. You can set it on a single device or on your router so every device benefits. On the router, look for the DNS settings in the WAN or DHCP section and enter the resolver's addresses.