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CIRA Canadian ShieldDNS4EU
Free

Free, provided by a national not-for-profit.

 Free

Free public service for individuals, with separate offerings for institutions and…

Windows, macOS, Android, iOS, Browser extension Windows, macOS, Linux, Android, iOS
  • Blocks phishing, malware, botnets and scam sites
  • Optional adult content filtering for families
  • No software or agent to install, only a DNS address to set
  • Resolution runs on EU infrastructure under EU rules
  • Built primarily for Canadian users
  • No custom blocklists or per-domain control described
  • Filtering is fixed per variant, with no custom block lists for individuals
  • Relies on trusting a third-party resolver with your queries
Downloadable app, Hosted service, Browser extension Hosted service
Closed source Closed source
License not stated License not stated
Not stated if an account is needed No account needed
Needs internet Needs internet

Checked September 24, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.