DNS: Free/open nameservers

Free/open nameservers for IP versions 4+6, with location of provider. Most providers have servers physically located in multiple locations.

Please use the links provided below before using the service: Some providers have additional features not shown in these tables. Some of these features may be optional, fee-based, and/or desirable. Examples are anything from ad-blocking to delivering of your location to third-party web-sites. In most cases the provider will have separate IP-adresses that enable these add-on services (these are not included in the tables below, even if they may be free).

All servers operated by a firm with ownership or headquarters located in USA are listed as "USA based providers" even if their server network is global.

Please note that on this page the words "free/open" means "anybody may join and use the service without payment". The words do not imply "open source", "no censorship", or "no surveillance". Some providers below may be (much) more privacy-friendly than others, and some may be (much) less so.

At the bottom of this page are links to much larger lists

IP version 4 (IPv4)

Providers outside USA

AdGuard Public DNS (CY/EU) nameserver
Censurfridns.dk (DK/EU) nameserver
Mullvad.net (SE/EU) nameserver
Quad 9 (CH) nameserver
Yandex.DNS (RU) nameserver

USA based providers

Cloudflare (USA) (2) nameserver
Comodo (USA) nameserver
Google (USA) nameserver
NextDNS (USA) nameserver
OpenDNS (USA) nameserver
OpenNIC (USA) nameserver

IP version 6 (IPv6)

Providers outside USA

AdGuard Public DNS (CY/EU) nameserver 2a10:50c0::1:ff
nameserver 2a10:50c0::2:ff
Censurfridns.dk (DK/EU) nameserver 2001:67c:28a4::
nameserver 2002:d596:2a92:1:71:53::
Mullvad.net (SE/EU) nameserver 2a07:e340::2
Quad 9 (CH) nameserver 2620:fe::fe
nameserver 2620:fe::9
Yandex.DNS (RU) nameserver 2a02:6b8::feed:0ff
nameserver 2a02:6b8:0:1::feed:0ff

USA based providers

Google (USA) nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844
NextDNS (USA) nameserver 2a07:a8c0::92:ba93
nameserver 2a07:a8c1::92:ba93
OpenDNS (USA) nameserver 2620:0:ccc::2
nameserver 2620:0:ccd::2

Unknown location

Note: From a privacy/security point-of-view it does not make sense to trust a DNS provider you do not even know the location of. I have no idea why these services think it's a good idea to keep their location secret. Hints found on their web pages and/or WHOIS info seem to indicate an European origin, but that may be entirely wrong.

So, these are not recommendations! Quite the contrary. These are examples of services that have an unclear origin and purpose, in spite of on-site verbiage attesting to somewhat pro-bono purposes.

Dns.sb (?) nameserver
IPv6 nameserver 2a09::
IPv6 nameserver 2a11::
LibreOps Radicaldns (?) nameserver (port 53)
nameserver (port 53)
IPv6 nameserver 2a01:4f8:1c0c:82c0::1
IPv6 nameserver 2a03:f80:30:192:71:166:92:1
LibreDNS encrypted (?) DNS over HTTPS https://doh.libredns.gr/dns-query

Many more alternatives

Since this list was first published the amount of available DNS servers seems to have exploded.

For many more alternatives, refer to these lists: