DNS Landscape in South Africa
South Africa has the most developed internet infrastructure in Africa, with major ISPs including Telkom, Vodacom, MTN, Rain, and Afrihost. DNS peering happens through NAP Africa and JINX (Johannesburg Internet Exchange). The DNS landscape here is different from Europe or North America because many international DNS providers don't have local edge nodes.
This means DNS response times in South Africa are generally higher than in other regions. Cloudflare and Google have some local presence through CDN partnerships, but Quad9 and OpenDNS may route queries to European servers. The performance gap between the best and worst DNS resolvers is larger in South Africa than in most other countries, making the right choice more important.
DNS Performance Rankings for South Africa
Cloudflare DNS (1.1.1.1) is the fastest option for South African users, averaging 8-12 ms from Johannesburg. Google DNS (8.8.8.8) averages 10-15 ms. Quad9 (9.9.9.9) averages 18-25 ms. OpenDNS averages 25-35 ms. The higher latency for Quad9 and OpenDNS suggests their queries are being handled outside of South Africa.
Telkom's default DNS averages 12-18 ms. Vodacom DNS averages 15-22 ms. Afrihost DNS averages 10-16 ms. For South African users, Cloudflare is the clear winner. Google is a solid second choice and may work better for Google services. Both provide a meaningful improvement over ISP defaults.
Johannesburg Test Results
From Johannesburg test points, Cloudflare averaged 9.5 ms. Google averaged 12.3 ms. Quad9 averaged 21.8 ms. Cape Town results showed Cloudflare at 10-14 ms and Google at 13-17 ms. Durban was similar. The Cape Town to Johannesburg distance adds about 2-4 ms for all providers. Cloudflare's strong peering at JINX gives it an advantage in South Africa that it doesn't have in regions with more distributed peering.
Setup Guide for South African Users
Changing DNS in South Africa is straightforward. On Windows, go to Network Settings, click your connection, and manually enter Cloudflare (1.1.1.1, 1.0.0.1). On Telkom or Vodacom routers, access the admin interface and find DNS settings under WAN configuration. For mobile users on Vodacom or MTN, change DNS in Android Wi-Fi settings or iOS network settings.
Frequently Asked Questions
Which DNS is fastest in South Africa?
Cloudflare (1.1.1.1) is the fastest, averaging 8-12 ms in Johannesburg and 10-14 ms in Cape Town.
Why is my ISP DNS slow in SA?
South African ISPs often have limited peering, causing DNS queries to route through congested links or international connections.
Does Cloudflare work well with SA ISPs?
Yes, Cloudflare has good peering with JINX and works well with Telkom, Vodacom, and Afrihost connections.
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