| OpenDNS | Users whose problem is closer to a resolver path with stronger enterprise and policy context | Cisco, policy-control, and enterprise-security framing are more visible | If the real problem is closer to a security-oriented public resolver, this side becomes a misfit quickly | Low-medium | Best as the OpenDNS path |
| Quad9 | Users whose problem is closer to a security-oriented public resolver | public accessibility and security-oriented public-resolver framing are clearer | If the real problem is closer to a resolver path with stronger enterprise and policy context, this side becomes less convincing | Low-medium | Best as the Quad9 path |
| Separate roles before ranking | Users who do not want to flatten both sides into the same public-DNS label | Service goals, deployment context, trade-offs, and false-positive cost together | The workflow is longer, but it reduces shallow comparison sharply | Medium | Best as the final decision path |