Quad9: Free DNS Resolution Service for Privacy & Security
Quad9 provides a free DNS resolution service, blocking malicious sites to protect users from online threats, focusing on privacy and security.
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.
Quad9 Features
Features
DNS resolution service
Blocks access to known malicious sites
Encrypts DNS traffic
Does not collect or sell user data
Available globally
Pricing
Free
Pros
Improved privacy and security
Easy to set up and use
Free service
Backed by major cybersecurity organizations
Cons
May block some legitimate sites
Limited configuration options compared to other DNS services
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