Quad9
Security and Privacy. For Free.
Overview
Quad9 is a non-profit organization that provides a free public DNS resolver focused on security and privacy. It blocks connections to malicious hostnames from a curated list of threat intelligence partners. By simply changing their DNS settings to 9.9.9.9, users can get an easy layer of protection against malware, phishing, and spyware domains. It does not store any personally identifiable information.
✨ Key Features
- Free to use
- Blocks malicious domains (malware, phishing, spyware)
- Aggregates threat intelligence from 19+ partners
- DNS-over-TLS (DoT) and DNS-over-HTTPS (DoH) for privacy
- No logging of personal data
- Global anycast network for low latency
🎯 Key Differentiators
- Non-profit, privacy-first mission
- Built-in, non-optional threat blocking
- Aggregates a wide range of threat intelligence feeds
Unique Value: Provides a simple, free, and effective way to improve internet security and privacy for any user or device without requiring any software installation.
🎯 Use Cases (4)
✅ Best For
- Individual user security
- Privacy-conscious browsing
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Organizations needing customizable filtering, reporting, or multi-user management
🏆 Alternatives
Unlike Google DNS, it doesn't collect personal data for commercial purposes. Unlike Cloudflare's default DNS, it blocks malicious domains by default.
💻 Platforms
🛟 Support Options
- ✓ Email Support
🔒 Compliance & Security
💰 Pricing
Free tier: Unlimited
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