Self-hosted / open sourceDNS Privacy & FilteringHeadquarters: NL

Unbound: sovereignty score and 8 European alternatives

Unbound is a validating, recursive and caching DNS resolver. It resolves domain names on behalf of clients, validates DNSSEC signatures and keeps an aggressive cache of validated answers to reduce queries to authoritative servers. It supports DNS-over-TLS and DNS-over-HTTPS so that clients can encrypt their queries, and Query Name Minimisation, which limits the information sent to authoritative servers. Unbound runs on Linux, BSD and macOS and needs only a few lines of configuration.

Unbound is developed by NLnet Labs, a non-profit public benefit organisation based in Amsterdam, the Netherlands, and it is released as open source under the BSD licence. There is no hosted service: you run it on your own servers or devices, so resolution, cache and logs stay under your control and no foreign parent company is involved.

See the 8 European alternatives ↓Assess your stack with Unbound pre-selected

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Sovereignty score

94 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-3100
EU-only hosting
Cryptographic key sovereignty SOV-390
Self-hostable: encryption keys under your own control
Freedom from lock-in SOV-680
Open source: low switching costs
Source & runtime sovereignty SOV-4 · SOV-6100
Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked July 2, 2026

Headquarters	NL (EU)Verified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	YesVendor-stated
Hosting signal	HETZNER-AS - Hetzner Online GmbH, DE (DE)Technically measured
Category	DNS Privacy & Filtering
Type	Product
Website	nlnetlabs.nl ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Unbound

The European alternatives to Unbound come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

24 European DNS Privacy & Filtering vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Unbound

Unbound is headquartered in NL and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Unbound scores best on data residency.

Unbound is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Unbound together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Unbound?

It depends on your use case. Strong EU alternatives to Unbound include AdGuard DNS, AdGuard Home and Blocky. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Unbound?

Yes. Open-source EU alternatives to Unbound include AdGuard Home and Blocky. These keep your data fully under your own control and let you self-host if you want to.

Is Unbound GDPR-compliant and where is the data hosted?

Unbound is headquartered in NL (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Unbound an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on July 2, 2026.

Sources

This record was checked via the vendor's website and legal notice during the full audit of June and July 2026. Source links have been recorded per record since 20 September 2026.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in DNS Privacy & Filtering

DNS Privacy & Filtering: Privacy-friendly DNS services, ad blocking and DNS filtering. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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