AdGuard DNS
AdGuard DNS is a DNS resolver from AdGuard Software Limited, a company registered in Limassol, Cyprus, which also develops the AdGuard ad blocker and AdGuard VPN. The company was incorporated in June...
AdGuard DNS is a DNS resolver from AdGuard Software Limited, a company registered in Limassol, Cyprus, which also develops the AdGuard ad blocker and AdGuard VPN. The company was incorporated in June...

CZ.NIC ODVR (Open DNSSEC Validating Resolvers) are public DNS resolvers run by CZ.NIC, the Czech interest association that operates the .cz domain registry. CZ.NIC was founded in 1998 by fifteen leading internet...
DNS4EU is a public DNS resolver operated by Whalebone s.r.o., a cybersecurity company based in Brno, Czech Republic. It started as an EU co-funded project (2023 to 2025) run by a consortium...
Quad9 is a free public DNS resolver run by the Quad9 Foundation, a Swiss public-benefit foundation headquartered in Zürich. The service moved its headquarters from California to Switzerland in 2021. Devices, routers...
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Submit SuggestionA public DNS resolver is the server that turns a domain name into an IP address whenever a device asks for it. By default that is the resolver of the internet provider, but a router, an operating system or a browser can be pointed to a public one instead, such as 1.1.1.1 from Cloudflare or 8.8.8.8 from Google. People look for an alternative DNS server because the resolver sees every domain a household or company looks up, and because the best-known public resolvers belong to US companies. This page lists public DNS servers operated from Europe.
| Resolver | Operator and seat | Variants | Encrypted protocols | Logging according to its own statement |
|---|---|---|---|---|
| Quad9 | Quad9 Foundation, Zürich, Switzerland | Malware blocking (recommended), with ECS, unfiltered | DoH, DoT, DNSCrypt | No client IP addresses stored, only aggregate counters |
| DNS4EU | Whalebone s.r.o., Brno, Czech Republic | Five: protective, child protection, ad blocking, both, unfiltered | DoH, DoT | Queries logged with an anonymised client IP; narrow exceptions for attack defence |
| AdGuard DNS | AdGuard Software Limited, Limassol, Cyprus | Default (ads, trackers), non-filtering, family protection | DoH, DoT, DoQ, DNSCrypt | No personal data processed on the public servers; account variant has its own query log |
| CZ.NIC ODVR | CZ.NIC, Prague, Czech Republic | One, unfiltered, DNSSEC validating | DoT, DoH | No policy on the ODVR page |
A public resolver answers the lookups of the people who use it. DNS hosting is the other side: authoritative name servers that publish the records of a domain. For that, see DNS providers. For a direct replacement of a well-known address, see Cloudflare 1.1.1.1 and Google Public DNS.