OpenDNS DNS delivers a cloud powered resolution service designed for security, speed, and straightforward management. It provides enterprise grade filtering and threat protection while remaining accessible to home and small business users.
By combining global infrastructure with real time threat intelligence, OpenDNS DNS helps organizations and families block malware, phishing, and undesirable content before it reaches the device.
| Service | Resolver IPs | Security Features | Family Controls | Typical Use Case |
|---|---|---|---|---|
| OpenDNS DNS | 208.67.222.222, 208.67.220.220 | Malware blocking, phishing protection, real time threat intelligence | Web filtering, age based policies, safe search enforcement | Home networks, SMBs, branch offices |
| Public Google DNS | 8.8.8.8, 8.8.4.4 | Basic phishing and malware lists, DNSSEC validation | Limited, primarily safe search options | General consumers, performance seekers |
| Quad9 | 9.9.9.9, 149.112.112.112 | Threat feed based blocking, DNSSEC | Moderate web category blocking | Privacy focused users, SMBs |
| Cloudflare DNS | 1.1.1.1, 1.0.0.1 | Minimal logging, DNS over HTTPS | Basic safe search add on | Privacy conscious users |
How OpenDNS DNS Works
OpenDNS DNS operates as a recursive resolver that prioritizes security and policy enforcement. When a device queries a domain name, the service checks its threat intelligence feeds and blocking policies before returning an IP address.
Traffic is routed through anycast infrastructure, which reduces latency and improves reliability. DNSSEC validation is supported to help ensure the authenticity of responses along the resolution path.
Network Security and Threat Protection
Security is a core focus of OpenDNS DNS, with built in protection against malware, botnets, and phishing sites. The system evaluates each request against continuously updated threat feeds and blocks known bad destinations in real time.
Organizations can layer additional protections such as sinkholing for internal threats and integration with security information and event management platforms. This approach helps reduce the attack surface across wired and wireless environments.
Content Filtering and Policies
Flexible content filtering lets administrators block categories such as adult content, gambling, proxy anonymizers, and social networking. Policies can be applied at the network level or tied to specific IP addresses or VLANs.
For families, simplified controls enable safe search enforcement and age appropriate restrictions on connected devices. These settings sync across locations when managed through the central dashboard.
Performance, Reliability, and Analytics
OpenDNS DNS leverages a global network of data centers to deliver low latency resolution for high performance. Anycast routing ensures that queries are directed to the most responsive instance available at the edge.
Detailed reporting and dashboards provide insight into traffic patterns, blocked domains, and security events. Historical data helps identify trends, troubleshoot issues, and justify security investments to stakeholders.
Implementation and Best Practices
- Set the primary and secondary DNS at the network gateway or DHCP server for organization wide coverage.
- Use the dashboard to create department or site specific policies with appropriate block and allow lists.
- Enable logging and alerts for high risk categories to detect reconnaissance or compromised endpoints.
- Test content filters and safe search settings in a pilot group before rolling out to all users.
- Monitor performance metrics and latency to confirm that the service meets your experience expectations.
FAQ
Reader questions
Can OpenDNS DNS be used on a local network without changing every device setting?
Yes, you can deploy OpenDNS DNS at the router or DHCP server level so that all connected devices inherit the resolvers automatically, avoiding manual configuration on each endpoint.
Does OpenDNS DNS support DNS over HTTPS or DNS over TLS for encrypted queries?
Yes, the service supports DNS over HTTPS and DNS over TLS, allowing encrypted name resolution that helps prevent on path snooping and tampering.
How does OpenDNS DNS handle split horizon or internal domain resolution?
You can configure forwarding rules and internal domains to ensure that internal hostnames resolve correctly on site while external policies remain enforced consistently.
What happens if the OpenDNS DNS service experiences an outage?
Devices can fall back to alternative resolvers or the ISP provided DNS if configured, and administrative controls allow you to define backup paths to maintain name resolution continuity.