The purpose of this repository is to keep an up-to-date list of the latest KNOWN-GOOD public DNS servers.
nameservers.txt is updated weekly via a CI/CD script that does the following:
- Pulls raw list of public nameservers from https://public-dns.info/
- Interrogates each DNS server to see if it is "worthy". Each DNS server MUST:
- Respond within 1 second
- Respond accurately to both A and AAAA queries
- NOT respond to a NONEXISTENT query (helps to weed out bogus nameservers)
- Compiles the worthy nameservers into
nameservers.txt
The result is a list that's suitable to be used for any automated task, OSINT or otherwise. Enjoy!
Used by BBOT's massdns module.