Free NetCrunch Tools NetCrunch

DNS Audit

NetCrunch Admin Toolset

Check reverse and forward DNS consistency across IP ranges

DNS Audit is a diagnostic tool that helps identify DNS misconfigurations by scanning IP address ranges and verifying reverse and forward DNS resolution.

It checks if each IP address has a valid PTR record (reverse lookup), then performs a forward DNS query on the resulting hostname to see if it maps back to the original IP.

This two-step verification process helps detect: - Inconsistent or missing PTR records - Forward/reverse mismatches - DNS resolution loops or stale records

You can scan entire subnets or custom IP ranges. The results show hostnames, matching status, and response info — helping you catch errors that often go unnoticed in DNS zones.

It's particularly useful for:

  • Auditing server and device DNS entries
  • Troubleshooting name resolution issues
  • Validating DNS before deployments or migrations

Simple, visual, and efficient — no command-line required.

DNS Audit Tool

Download

features:

  • Scans reverse DNS (PTR) entries for a range of IP addresses
  • Performs forward lookup to confirm address/hostname consistency
  • Flags mismatches or unresolved records
  • Ideal for pre-deployment checks and ongoing DNS hygiene
  • Works on any accessible network range

Requires Windows 10 x64 or later.
Uses AdRem Application Engine (Chromium-based runtime), downloaded automatically if missing.

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End User License Agreement

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