DNS resolvers
Control D privacy rating
DNS resolver service from ControlD Inc. in Canada, founded by the team behind Windscribe. It offers free filtering resolvers and paid plans with custom rules, over legacy DNS, DoH, DoT and DNS over QUIC.
Summary
Control D scores 63 out of 100 (grade C) on the DNS resolvers criteria. It meets 5 of 11 criteria: no trackers or telemetry, no ads or data sales, TLS configuration, Encrypted DNS and DNSSEC validation. It partly meets open source, security headers and no query logs. It does not meet independent audit, transparency report and tells users about requests. It is based in Canada: Five Eyes member. Automated tests: SSL Labs grade A+ and Mozilla HTTP Observatory grade B.
Score 63 out of 100. How scoring works
Criteria
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Partial
Open source Weight 3 of 3
Is all the source code needed to run the product public?
The ctrld client is open source under the MIT license. The resolver service is closed source.
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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 site states no third-party tracking or analytics services are used on the website.
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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 plans. No ads.
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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.
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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.
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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.
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Yes
Encrypted DNS Weight 3 of 3
Are DNS over HTTPS and DNS over TLS supported?
The free resolvers are listed with DoH, DoT and DNS over QUIC endpoints.
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Partial
No query logs Weight 3 of 3
Are queries stored without IP addresses, and is this independently audited?
The free resolvers are stated to keep no browsing history, timestamps or logs. Not audited.
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Yes
DNSSEC validation Weight 1 of 3
Does the resolver validate DNSSEC?
DNSSEC validation is on by default and can be turned off per profile.
Automated tests
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Yes
TLS configuration Weight 2 of 3
Does the website pass the Qualys SSL Labs test with a grade of A or better?
Grade A+
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Partial
Security headers Weight 1 of 3
Does the website pass the Mozilla HTTP Observatory test with a grade of A or better?
Grade B (75/100+)
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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.