description Quad9 Overview
Quad9 is a non-profit organization that provides a secure, privacy-centric DNS service. Its primary mission is to protect users from cyber threats by automatically blocking access to known malicious domains. Quad9 aggregates threat intelligence from over a dozen leading cybersecurity companies, ensuring that your network is protected against phishing, malware, and botnets in real-time. Because it is a non-profit, it does not monetize user data, making it an excellent choice for those who prioritize security and ethical data practices over raw speed customization.
info Quad9 Specifications
| Logging Policy | No logging of user IP addresses |
| Software License | Apache 2.0 (open source) |
| Dns Resolver Ipv6 | 2620:fe::fe |
| Global Pops Count | 150+ |
| Organization Type | Non-profit foundation (Swiss law) |
| Edns Client Subnet | Not supported for privacy reasons |
| Protocols Supported | DNS-over-HTTPS (DoH), DNS-over-TLS (DoT), DNSSEC |
| Threat Intelli Sources | 20+ cybersecurity companies |
| Dns Resolver Primary Ipv4 | 9.9.9.9 |
| Dns Resolver Secondary Ipv4 | 149.112.112.112 |
balance Quad9 Pros & Cons
- Free non-profit service with no profit motive, ensuring long-term sustainability without commercial interests
- Blocks access to over 10 million known malicious domains using threat intelligence from 20+ cybersecurity companies
- Strong privacy protection with no logging of user IP addresses and DNSSEC validation
- Supports modern protocols including DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) for encrypted queries
- Operates 150+ global PoPs for low-latency DNS resolution worldwide
- Open source software with transparent operations and published security audits
- Being a non-profit with limited resources may result in slower feature development compared to commercial alternatives
- May experience occasional resolution delays or outages due to reliance on donations and volunteer infrastructure
- Limited customer support options compared to enterprise-grade DNS services
- No content filtering or parental control features available
- Does not offer advanced enterprise features like traffic analytics, SLA guarantees, or custom domain routing
help Quad9 FAQ
How does Quad9 differ from Google Public DNS or Cloudflare 1.1.1.1?
Quad9 focuses exclusively on security and privacy by blocking malicious domains without logging IP addresses, whereas Google prioritizes speed and performance. Cloudflare emphasizes privacy but Quad9 differentiates through its non-profit model and cybersecurity-focused threat intelligence.
Does Quad9 slow down my internet connection?
Quad9 operates 150+ points of presence globally, typically providing comparable speeds to other public DNS services. While geographic distance to the nearest server can affect latency, most users experience minimal noticeable difference in browsing speed.
How do I configure Quad9 on my router or device?
Quad9 provides easy-to-follow setup guides for routers, Windows, macOS, Linux, Android, and iOS. On most devices, you simply change your DNS server addresses to 9.9.9.9 (IPv4) or 149.112.112.112 (secondary).
What happens if Quad9 blocks a legitimate website?
If a legitimate site is incorrectly blocked, users can report it through Quad9's website for investigation. The blocklists are updated continuously, and false positives are typically resolved within 24-48 hours after verification.
Can businesses and enterprises use Quad9?
Yes, enterprises can use Quad9's free public DNS service. However, organizations requiring SLA guarantees, advanced analytics, or custom filtering should consider enterprise DNS solutions, as Quad9 does not offer paid business tiers.
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What is Quad9 best for?
Privacy-conscious individuals and organizations seeking a free, security-focused DNS resolver that blocks malicious domains without compromising user privacy.
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What are the key specifications of Quad9?
- Logging Policy: No logging of user IP addresses
- Software License: Apache 2.0 (open source)
- DNS Resolver IPv6: 2620:fe::fe
- Global PoPs Count: 150+
- Organization Type: Non-profit foundation (Swiss law)
- EDNS Client Subnet: Not supported for privacy reasons
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