Comodo Secure DNS
Comodo Secure DNS: A no-install public DNS resolver for basic malicious-domain blocking. Ranked #25 of 28 in DNS Filtering Software by our editors (6.6/10); pricing: Free plan; best for free basic malicious-domain DNS blocking.
At a glance
- Editor score6.6 / 10
- PricingFree plan
- Best forFree basic malicious-domain DNS blocking
- Free planYes
- Paid fromFree
- Facts checked21 Sep 2026
Where it wins
- Free public DNS servers with no software installation required
- Malware-domain filtering uses a real-time harmful-site block list
- Anycast routing and redundant DNS infrastructure support DNS availability
Where it doesn't
- Does not provide authoritative DNS management for customer domains
- No verified category policies, reporting, or encrypted DNS
- Configuration is limited to routers and computers
Our verdict on Comodo Secure DNS
Comodo Secure DNS is a free recursive DNS resolver for people and small organizations seeking an alternative to their internet service provider’s DNS service. It uses public DNS servers and requires users to configure a router or computer rather than install an application. The service is aimed at straightforward malicious-domain blocking, with support for Windows and macOS environments and cloud deployment. It is a focused resolver rather than a full authoritative DNS management platform or an enterprise DNS security suite.
Its main strength is the combination of recursive DNS resolution and malware-domain filtering. A real-time block list of harmful websites helps identify domains associated with malicious activity, while Anycast routing and redundant DNS infrastructure support the service’s network design. Comodo Secure DNS also provides nonexistent-domain search and guide pages, which can help explain certain failed lookups. The configuration model is direct: users point a router or computer to Comodo’s public DNS servers, with no installed software required.
The Free plan covers recursive DNS resolution, malware-domain filtering, and access to public DNS servers. The product remains narrow in scope, however. It does not provide authoritative DNS management for customer domains, and verified features do not include category policies, reporting, or encrypted DNS. Those looking for additional enterprise controls should consider Comodo Secure Internet Gateway, which is presented as a separate product. Comodo Secure DNS suits solo users and small organizations that want free, basic harmful-domain blocking with a configuration-based setup; organizations needing policy controls, visibility, or broader DNS administration should choose a different fit.
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Comodo Secure DNS pricing
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Comodo Secure DNS fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Deployment modes | Not verified |
| Category filtering | Not verified |
| Custom domain policies | Not verified |
| Device limit | Not verified |
| Roaming protection | Not verified |
| Activity reports | Not verified |
| Encrypted DNS support | Not verified |
| Deployment | Cloud |
| Platforms | Windows, macOS |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | comodo.com |
| Facts checked | 21 Sep 2026 |
Alternatives to Comodo Secure DNS
- AdGuard DNSA broad DNS filtering service for families, organizations, and connected devices.9.4
- Control DA broad DNS filtering platform with free access, detailed controls, and flexible deployment.9.3
- NextDNSFlexible DNS filtering for families, personal privacy, schools, and businesses.9.2
See all Comodo Secure DNS alternatives →
Also Ranked In
Comodo Secure DNS is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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