Troubleshooting DNS Errors (NXDOMAIN, SERVFAIL, etc.) Print


Troubleshooting DNS Errors

Summary:
Common DNS errors and how to resolve them.

NXDOMAIN

This error means the domain name does not exist. Verify you have the correct domain spelling and that it's registered.

SERVFAIL

This indicates a DNS server failure. Check your authoritative nameservers and ensure they are online and correctly configured.

REFUSED

DNS server refused to respond. Check for firewall restrictions or misconfigurations.

Other Tips

  • Use IntoDNS or DNSChecker for diagnostics.
  • Ensure all required records (NS, A, SOA) are present and accurate.

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