Open database tracking 77K public DNS servers every 10 minutes

What it does

Most public DNS lists are static, stale text files. DNS Directory is a live-monitored database that tracks 77,000+ servers in real-time so you never waste time on dead connections. Filter servers by uptime, location, and security features (like ad-blocking, family safe, malware free), and access detailed historical data in one free, searchable dashboard.

Find the best free public DNS servers for gaming, privacy, and speed. DNS Directory compares Cloudflare, Google, Quad9, OpenDNS and 1000+ providers with real-time uptime monitoring, DNSSEC support, and performance metrics.

Discover verified DNS servers worldwide with real-time status monitoring and performancefrom dnsdirectory.com

In the maker’s words, at launch

Hey HN! We built DNS Directory (https://dnsdirectory.com), a free, searchable database of public DNS servers with live monitoring every 10 minutes. We needed to find an up-to-date list of DNS servers used by carriers around the world for a proxy fingerprinting / web-scraping project but we were shocked…

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  4B+ DNS Records Dataset2024 · merklemap.com · ▲90

  Hi HN, I've been working on building a pipeline to create a DNS records database lately. The goal is to enable research as well as competitive landscape analysis on the internet. The dataset for now spans around 4 billion records and covers all the common DNS record types: A AAAA ANAME CAA CNAME HINFO HTTPS MX NAPTR NS PTR SOA SRV SSHFP SVCB TLSA TXT Each line in the CSV file represents a single DNS record in the following format: www.example.com,A,93.184.215.14 Let me know if you have any questions or feedback!

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  Park your domain in less than 15 seconds

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  A DNS server that removes the top million domains2012 · millionshort.com · ▲48
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  I built a guided Build your own DNS Server challenge2023 · app.codecrafters.io · ▲57

  Hey everyone. It's Sherub here, author of the Build your own DNS Server challenge on CodeCrafters. Currently it’s available in Rust, Go, and Python and is free while in beta. https://codecrafters.io/dns-server I've kept the challenge accessible but still challenging for an intermediate developer. This challenge, like others from CodeCrafters, is self-paced. You can use any tools you prefer (terminal, editor, etc.) to build the project. At the end of the challenge, you will have created a DNS forwarding server. The server can create and read DNS packets and respond to DNS…

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  Review My DNSNov 2025 · reviewmydns.com · ▲7

  Check DNS propagation across 50+ global servers

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  I've created the fastest open-source DNS bruteforcer using XF_ADP2025 · github.com · ▲15

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• GP
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