DNSSEC Validator

Validate DNSSEC configuration for a domain

About DNSSEC

DNSSEC (Domain Name System Security Extensions) adds cryptographic signatures to DNS records, protecting against DNS spoofing, cache poisoning, and man-in-the-middle attacks. Our DNSSEC Validator checks a domain's DNSSEC configuration by verifying DNSKEY records, DS records at the parent zone, RRSIG signatures, and the overall chain of trust to confirm that the domain is properly secured against DNS tampering.

How to Use

Enter the domain name you want to check for DNSSEC configuration.
Click Validate to query DNSSEC records and verify the chain of trust.
Review whether DNSSEC is enabled and which record types are present.
Check individual record status to identify missing or misconfigured DNSSEC records.

Use Cases

DNS Security: Verify that your domains are protected against DNS spoofing and cache poisoning.
Compliance: Meet regulatory requirements that mandate DNSSEC for government and financial domains.
Email Security: Ensure DNSSEC is properly configured for DMARC and email authentication to function correctly.
Troubleshooting: Diagnose DNSSEC validation failures that prevent clients from resolving your domain.

Frequently Asked Questions

The chain of trust in DNSSEC starts at the root zone, where root DNSKEYs are trusted. Each zone signs its DNSKEY with its parent's private key via a DS record. This chain continues from root, through TLDs, down to your domain. The validator checks that this chain is complete and valid.

The validator checks for DNSKEY records (public keys used for verification), DS records (delegation signer linking to parent zone), and RRSIG records (digital signatures over DNS data). Optionally, it also checks for NSEC/NSEC3 records used for authenticated denial of existence.

No, DNSSEC does not encrypt DNS traffic. It only adds digital signatures to authenticate DNS data. For DNS privacy and encryption, use DNS over HTTPS (DoH) or DNS over TLS (DoT) in combination with DNSSEC for both authenticity and confidentiality.

Tips & Best Practices

•Enable DNSSEC to protect against DNS spoofing and cache poisoning
•Verify DNSSEC configuration with this validator after setup
•Monitor DNSSEC signature expiry to prevent DNS failures
•Use DNSSEC alongside TLS for defense-in-depth security

Technical Details

Protocol: DNS Security Extensions (DNSSEC) validation
Records: DNSKEY, RRSIG, DS, and NSEC record analysis
Chain: DNSSEC trust chain validation
Output: DNSSEC status with validation chain details