DNSSEC Validator

About DNSSEC Validation

DNSSEC validation is the process of verifying that DNS responses are cryptographically signed and haven't been tampered with. This validator performs comprehensive checks for the presence of all essential DNSSEC records including DS (Delegation Signer), DNSKEY (public keys), RRSIG (Resource Record Signatures), NSEC, and NSEC3 records.

A valid DNSSEC setup requires a complete chain of trust from the root zone down to your domain, with proper signatures on all DNS records. The chain of trust ensures that each level of the DNS hierarchy is cryptographically linked to the next, creating an unbroken path of authentication from the root zone to your specific domain.

When DNSSEC validation succeeds, it means that the DNS data you receive is authentic and hasn't been modified by attackers. This protects against DNS spoofing, cache poisoning, and man-in-the-middle attacks. If validation fails, resolvers will refuse to return the DNS data, protecting users from potentially malicious responses.

Use this validator to quickly check if a domain has DNSSEC properly configured. The tool examines all critical DNSSEC components and provides detailed information about what records are present and their validation status. For more detailed analysis, use our specialized tools like the Chain Verifieror RRSIG Tool.