Even if you have a server (or two) running your own DNS, to minimise service interruptions or outages it’s a great idea to have additional secondary DNS servers that are separate from your infrastructure.
Below in alphabetical order are some of the free secondary DNS providers that I have used in the past, or currently still do.
- 4 DNS servers in Europe.
- Also provides free Primary DNS.
- Single DNS server, Washington DC, USA.
- 3 DNS servers, all in Europe.
- Also provides free Primary DNS.
- 5 DNS servers that are anycast in multiple locations USA, Europe, Asia.
- Also provides free Primary DNS.
- Note: You must delegate your domain to them before you can add your domain.
- 4 DNS server hostnames that are anycast in 18+ locations around the world.
- 50 Records & 1M queries included in free account.
- Also provides free Primary DNS.
- Single anycast hostname
- 10+ worldwide locations
- Single DNS server in Chicago IL, USA.
- Single DNS server in Ukraine.
- Single DNS server in Malaysia.
- Available on IPv4 only.
- 5 DNS server hostnames in various locations
- 1 free zone available.
- Also provides free Primary DNS.
I try and keep this list regularly updated, please let me know if you have a suggested update.
If you don’t want to run your own DNS server(s) and just want a full managed DNS service, I also have a page listing free DNS providers.