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OpenDNS Home vs CIRA Canadian Shield: catalog facts
OpenDNS Home	CIRA Canadian Shield
Free The home DNS service is free to use.	Free Free, provided by a national not-for-profit.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Android, iOS, Browser extension
Network-wide filtering set once at the router Content filtering suited to parental controls	Blocks phishing, malware, botnets and scam sites Optional adult content filtering for families
Queries go to a US company's resolver Website mostly promotes Cisco's enterprise products	Built primarily for Canadian users No custom blocklists or per-domain control described
Hosted service	Downloadable app, Hosted service, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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