What are the key differences between OpenDNS Resolver (Cisco) and Quad9 DNS?

Compare OpenDNS Resolver (Cisco) and Quad9 DNS side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are OpenDNS Resolver (Cisco) and Quad9 DNS scored?

OpenDNS Resolver (Cisco) has an AI score of 7.5/10 and Quad9 DNS has an AI score of 9.2/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

OpenDNS Resolver (Cisco) vs Quad9 DNS 2026 — Compared

OpenDNS Resolver (Cisco)

Quad9 DNS

WINNER Quad9 DNS

Quad9 DNS edges ahead with a score of 9.2/10 compared to 7.5/10 for OpenDNS Resolver (Cisco). While both are highly rate...

OpenDNS Resolver (Cisco)

7.5 Good

DNS Provider Get OpenDNS Resolver (Cisco) open_in_new

emoji_events WINNER

Quad9 DNS

9.2 Excellent

DNS Provider Get Quad9 DNS open_in_new

psychology AI Verdict

Quad9 DNS edges ahead with a score of 9.2/10 compared to 7.5/10 for OpenDNS Resolver (Cisco). While both are highly rated in their respective fields, Quad9 DNS demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Quad9 DNS

verified Confidence: Low

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description Overview

OpenDNS Resolver (Cisco)

As a long-established player, OpenDNS (Cisco) remains a highly reliable choice, especially for corporate environments that require predictable, managed filtering policies. It is known for its straightforward implementation into existing network security hardware. While newer, more customizable options exist, its reputation for stable, managed network-level filtering keeps it relevant for many esta...

Quad9 DNS

Quad9 is a highly respected DNS service focused heavily on security, specifically blocking known command-and-control servers and malware domains. It operates on a principle of proactive threat intelligence, making it a top choice for users prioritizing malware protection above all else. Its commitment to security standards and rapid list updates ensures that users are protected against emerging th...