Quad9

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Quad9 is ranked #13 of 28 in DNS filtering software on Inferse. It runs on Android, iOS, Linux, macOS, Windows. There is a free plan.

Compared on DNS filtering software

Free plan: Yesquad9.net

Facts

Service: Quad9 is a free, recursive, anycast DNS platform providing security, performance, and privacy.quad9.net · 1 Oct 2026
Threat blocking: Quad9 blocks DNS requests for domains associated with malware, viruses, adware, phishing, and scams.docs.quad9.net · 1 Oct 2026
Threat intelligence: Quad9 combines data from more than 20 threat intelligence partners to identify malicious domains.quad9.net · 1 Oct 2026
Encryption: Quad9 supports DNS over TLS, DNS over HTTPS, and DNSCrypt.docs.quad9.net · 1 Oct 2026
DNSSEC: Quad9 provides DNSSEC validation on its resolver services.quad9.net · 1 Oct 2026
Privacy: Quad9 does not store end-user IP addresses and is governed by Swiss privacy law.docs.quad9.net · 1 Oct 2026
No content filtering: Quad9 does not offer content filtering and focuses on blocking malicious domains.quad9.net · 1 Oct 2026
Platforms: Setup guides are provided for Mac, Windows, Linux, iOS, and Android, with an Android app available.quad9.net · 1 Oct 2026
Integrations: Quad9 documentation includes guides for Cloudflared, Pi-hole, and open-source routers including pfSense, OPNsense, OpenWrt, MikroTik RouterOS, and IPFire.docs.quad9.net · 1 Oct 2026
Support: Quad9 support assists with setup questions and issues through its support team.quad9.net · 1 Oct 2026
Reliability: Quad9 reports 99.999% uptime for its global anycast service.quad9.net · 1 Oct 2026
Large-scale use: ISPs, service providers, and other large organizations are asked to contact Quad9 before sending large-scale DNS traffic.quad9.net · 1 Oct 2026
Threat-data partnerships: Quad9 shares anonymized volumetric information and rough threat geography with threat intelligence partners.quad9.net · 1 Oct 2026
Audience: Quad9 is intended for everyone from home users to large-scale enterprises.docs.quad9.net · 1 Oct 2026
Service history: Quad9 says its DNS service was brought online in August 2016 and the organization was launched in 2017.quad9.net · 1 Oct 2026