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deepmind.google·6d ago
AI Engineering
Hacker News·Jun 27·5 min read
Choosing a Public DNS Resolver
TL;DR
Many users struggle to choose a suitable public DNS resolver that meets their specific needs, such as privacy or speed. A tool was developed to filter and rank 29 global public DNS resolvers based on user-defined priorities like malware blocking and jurisdiction.
✦ Why It Matters
Engineers can leverage this tool to select DNS resolvers that optimize performance and security for their specific applications.
Key Takeaways
- Identify your DNS needs before choosing a resolver.
- Use the filtering tool to compare DNS resolvers.
- Consider the impact of encryption on latency.
- Evaluate resolver performance based on your location.
Full Summary
Public DNS resolvers are crucial for translating domain names into IP addresses, but users often face challenges in selecting one that aligns with their needs, such as privacy, speed, and security features. A comprehensive tool was created to help users filter and rank 29 global public DNS resolvers based on specific criteria, including transport methods, DNS Security Extensions (DNSSEC), and jurisdiction.
Users can sort and search through the resolvers, which are categorized by features like malware filtering and parental controls. Research from peer-reviewed DNS measurement studies was incorporated to inform users about trade-offs, revealing that while encrypted transports like DNS over HTTPS (DoH) introduce some latency, they do not significantly affect overall page load times.
Performance varies by provider and geographic location, meaning the fastest resolver can differ based on where the user is located. These insights empower users to make informed decisions about their DNS resolver choices, balancing speed and security.