Customizable DNS filtering with detailed controls
No Logs
Audited
Quad9
Nonprofit DNS that blocks malware domains
No Logs
Audited
Free
Completely free nonprofit service.
Quick Specs
| Open Source | ✗ No |
|---|---|
| E2E Encrypted | ✗ No |
| Zero Knowledge | ✗ No |
| Self-Hostable | ✗ No |
| No Logs Policy | ✓ Yes |
| Audited | ✓ Yes |
| Jurisdiction | Switzerland |
| Pricing | Free |
About Quad9
Free DNS service from Swiss nonprofit. Blocks known malicious domains using threat intelligence. Does not log your queries. Simple to set up - just change your DNS to 9.9.9.9.
Best For
Any organization wanting basic malware domain blocking
Security Considerations
A tool is only as effective as its implementation. Consider these factors:
- Configuration matters: Default settings may not match your threat model. Review security options carefully.
- Training is essential: Tools protect nothing if your team doesn't use them correctly or consistently.
- Integration points: Consider how this tool connects with your existing systems and what data flows between them.
- Continuity planning: Ensure you have backup access methods and know the recovery process.
Need help implementing this securely? Take our free assessment or book a discovery call.