Privacy Ratings

DNS resolvers

AdGuard privacy rating

Public DNS resolver from AdGuard that blocks ads, trackers and malicious domains, with open-source server software and DoH, DoT, DoQ and DNSCrypt support.

Cyprus Outside EyesLicense: AGPL-3.0

Summary

AdGuard scores 63 out of 100 (grade C) on the DNS resolvers criteria. It meets 5 of 11 criteria: open source, no trackers or telemetry, no ads or data sales, Encrypted DNS and DNSSEC validation. It partly meets TLS configuration and no query logs. It does not meet independent audit, transparency report, tells users about requests and security headers. It is based in Cyprus: Not in the Five, Nine or Fourteen Eyes; EU member (GDPR). Automated tests: SSL Labs grade B and Mozilla HTTP Observatory grade F.

Score 63 out of 100. How scoring works

Criteria

  • Yes

    Open source Weight 3 of 3

    Is all the source code needed to run the product public?

    AGPL-3.0.

    github.com

  • Yes

    No trackers or telemetry Weight 3 of 3

    Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?

    The policy states processed data is not shared with third parties, and the website loads no third-party analytics.

    adguard-dns.io

  • Yes

    No ads or data sales Weight 2 of 3

    Is the product funded without advertising, ad targeting or selling user data?

    Funded by paid private DNS plans. The policy states personal data is not sold or shared.

    adguard-dns.io

  • No

    Independent audit Weight 2 of 3

    Has an independent security or privacy audit been published within the last three years?

    No independent audit is published.

  • No

    Transparency report Weight 2 of 3

    Does the provider regularly publish how many government and legal requests it receives and how it responds?

    No transparency report or government request policy is published.

  • No

    Tells users about requests Weight 1 of 3

    Does the provider promise to tell users about requests for their data, unless a court forbids it?

    No published policy on notifying users about data requests.

  • Yes

    Encrypted DNS Weight 3 of 3

    Are DNS over HTTPS and DNS over TLS supported?

    DoH, DoT, DoQ and DNSCrypt are supported.

    adguard-dns.io

  • Partial

    No query logs Weight 3 of 3

    Are queries stored without IP addresses, and is this independently audited?

    The policy states no personal data is processed for public DNS and only an anonymous domain list is kept for 24 hours. Not audited.

    adguard-dns.io

  • Yes

    DNSSEC validation Weight 1 of 3

    Does the resolver validate DNSSEC?

    A lookup of the deliberately broken dnssec-failed.org domain is rejected as DNSSEC bogus.

    dns.adguard-dns.com

Automated tests

  • Partial

    TLS configuration Weight 2 of 3

    Does the website pass the Qualys SSL Labs test with a grade of A or better?

    Grade B

    ssllabs.com

  • No

    Security headers Weight 1 of 3

    Does the website pass the Mozilla HTTP Observatory test with a grade of A or better?

    Grade F (5/100+)

    developer.mozilla.org

  • Not tested yet

    Modern web standards Weight 1 of 3

    Does the website score 90% or higher on the Internet.nl website test?

    Not tested yet.

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