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Quad9

Quad9 is a free DNS resolution service that focuses on privacy and security. It blocks access to known malicious sites to protect users from threats.

What is Quad9?

Quad9 is a free, recursive, anycast DNS platform that provides endpoint protection, as well as DNS resolution. Quad9 blocks against known malicious domains to prevent users from accessing phishing, malware, ransomware and other types of malicious sites.

The service is operated by the Packet Clearing House, the Global Cyber Alliance, IBM Security and other cybersecurity organizations. Quad9 resolves DNS queries through 9.9.9.9 and other IP addresses.

Some key features of Quad9 include:

  • Blocks access to known malicious domains
  • Prevents DNS-based exfiltration and credential theft
  • Easy to enable on most devices by changing the default DNS server settings
  • Does not collect or sell personal identifiable information
  • Capability to uncover previously unknown threats by analyzing domain name lookups

Overall, Quad9 aims to improve end user cybersecurity and privacy just by using their DNS resolution service instead of other options.

The Best Quad9 Alternatives

Top Apps like Quad9

1.1.1.1, Blokada, AdGuard DNS, Control D, NextDNS, Cisco Umbrella, Google Public DNS, DtDNS, UncensoredDNS, NxFilter, NixNet DNS, CleanBrowsing, DnsWarden, ApateDNS, NextDNS Manager, Yandex.DNS, Comodo Secure DNS, OpenNIC, SafeDNS, AhaDNS, Freenom World, Squidblacklist, Securly, WebTitan DNS Web Filter, BlahDNS, DNS.Watch, DNS Redirector, SaferNet, Blue Reef, FoolDNS, Verisign Public DNS, DNSReactor, Trust DNS, Stubby, DNSX3, SmartViper Public DNS, Safe Web for kids are some alternatives to Quad9.

1.1.1.1

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Blokada

Blokada is a free and open source ad blocker and privacy protection app for Android devices. It works by creating a VPN to filter out advertising, tracking, malware and other unwanted content from websites, apps and more.One of the key benefits of Blokada is that it is highly configurable...

AdGuard DNS

AdGuard DNS is a free, open source ad blocking service that uses DNS filtering to block ads, tracking, malware and phishing on devices and networks. It works by rerouting DNS requests through AdGuard's servers which filter out unwanted and harmful traffic.Some key benefits of AdGuard DNS include:No software...

Control D

Control D is an all-in-one Internet privacy and security service that provides ad blocking, tracker blocking, and a private DNS service. It aims to deliver a faster, safer, and ad-free browsing experience.As an ad blocker, Control D removes intrusive ads from websites to provide a cleaner browsing experience and...

NextDNS

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Cisco Umbrella

Cisco Umbrella is a cloud-native platform that provides the first line of defense against threats on the internet. It works by analyzing domain name requests, IPs, URLs and file hashes against an evolving global network that spans across Cisco security infrastructure, customers, partners and threat intelligence sources.When users make...

Google Public DNS

Google Public DNS is a free Domain Name System (DNS) service offered by Google. It provides alternative DNS server addresses that can be configured in home networking routers, devices, and operating systems.The aim of Google Public DNS is to provide a faster, more reliable, and more secure way for...

DtDNS

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UncensoredDNS

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NxFilter

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NixNet DNS

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CleanBrowsing

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DnsWarden

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ApateDNS

ApateDNS is an open-source DNS tunneling application designed to establish tunnels through DNS traffic to bypass firewalls, web filters, and network restrictions. It works by encapsulating TCP/IP traffic within standard DNS queries and responses to covertly transport data over DNS protocol.The main purpose of ApateDNS is to provide...

NextDNS Manager

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Yandex.DNS

Yandex.DNS is a free Domain Name System (DNS) recursive resolver service provided by the Russian technology company Yandex. It offers a fast and reliable alternative to using your internet service provider's default DNS servers or public DNS services like Google DNS or Cloudflare.Some key features of Yandex.DNS...

Comodo Secure DNS

Comodo Secure DNS is a free Domain Name System (DNS) service offered by Comodo. It provides the core functionality of a DNS service - converting website names into IP addresses to connect your devices to internet services. However, Comodo Secure DNS routes your DNS queries through Comodo's proprietary Secure DNS...

OpenNIC

OpenNIC is a non-profit organization that maintains an alternative Domain Name System (DNS) root server network outside the control of ICANN. The OpenNIC DNS allows internet users to voluntarily select an alternative set of root servers for DNS resolution and registration services.Some key benefits and features of the OpenNIC...

SafeDNS

SafeDNS is a DNS filtering and security service designed for home networks and families. It works by rerouting DNS requests through SafeDNS's servers, which contain a regularly updated database of websites categorized as inappropriate or dangerous.When enabled, SafeDNS will block access to sites containing content such as pornography, violence...

AhaDNS

AhaDNS is a free, open-source DNS service launched in 2020 that puts privacy protection and ad blocking at the forefront. It routes DNS requests through its own Anycast network of DNS servers instead of using your ISP's servers. This prevents DNS hijacking and protects your privacy.Some key features of AhaDNS...

Freenom World

Freenom World is a free domain registration service offered by Freenom Inc. It allows users to register domain names for free under several popular TLDs including .tk, .ml, .ga, .cf and .gq. Some key features of Freenom World:Users can search for and register available domain names instantly for freeNo...

Squidblacklist

Squidblacklist is a free, open source blacklist lookup service designed to work with the Squid proxy server. It provides a way to filter web traffic and restrict access to certain websites and web content categories.Squidblacklist contains over 1 million domain listings across 50+ categories including ads, gambling, porn, social media, etc...

Securly

Securly is a comprehensive cloud-based web filtering and AI-powered online student safety platform designed specifically for K-12 schools. It goes beyond basic web filtering to provide 24/7 scanning of student emails, Google Drive content, chat messages, and device activity to detect early warning signs of self-harm, bullying, violence, substance abuse, and...

WebTitan DNS Web Filter

WebTitan DNS Web Filter is a powerful cloud-based DNS filtering solution designed to protect organizations against web-based threats and enable granular control over employee internet usage. It works by filtering domain name system (DNS) requests through a global cloud infrastructure, blocking access to malicious websites and restricting access to unwanted...

BlahDNS

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DNS.Watch

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DNS Redirector

DNS Redirector is a free and open-source software application that enables users to redirect DNS queries and responses. It works as a DNS proxy server running on the local machine that intercepts DNS requests and allows the user to provide custom IP address responses instead of the actual ones.Some...

SaferNet

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Blue Reef

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FoolDNS

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Verisign Public DNS

Verisign Public DNS is a free, recursive Domain Name System (DNS) resolution service offered by Verisign, Inc. It provides domain name resolution services for Internet users worldwide. Verisign Public DNS features multiple globally distributed anycast hosted DNS servers to provide greater reliability, improved security protections, faster speeds, and increased scalability...

DNSReactor

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Trust DNS

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Stubby

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DNSX3

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SmartViper Public DNS

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Safe Web for kids

Safe Web for kids is a comprehensive parental control software designed specifically to protect children from inappropriate or harmful content on the internet. It gives parents granular control over what websites and apps their kids can access based on age-appropriate categories and settings.Key features of Safe Web for kids...