Code tool

Zone File Validator

Paste a small zone-file excerpt to inspect common SOA, NS, A, AAAA, CNAME, MX, and TXT record shapes.

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Common record shapes only; not complete BIND or RFC compliance.

A QUICK WALKTHROUGH

How to use this tool

  1. Paste zone-file text.
  2. Run the bounded syntax check.
  3. Review line-level errors and the supported record scope.

Limited record scope

The local checker covers common SOA, NS, A, AAAA, CNAME, MX, and TXT line shapes plus blank/comment lines. Directives, macros, escaped edge cases, and every BIND/RFC rule are outside scope.

GOOD TO KNOW

Common questions

Is this a complete BIND validator?

No. It is a bounded syntax aid for common record lines.

Is my zone uploaded?

No. Parsing stays in your browser.