DNSSEC Validator

Determine if DNS Security Extensions (DNSSEC) are enabled, auditing DNSKEY and DS records to prevent DNS hijacking.

This interactive client-side tool is part of the NervLink Cybersecurity Suite. All analysis is verified entirely inside the local browser sandbox for maximum safety and data privacy compliance.

How It Works

1. Enter a target domain.
2. The tool queries for DNSKEY and DS records on the target zone.
3. The cryptographic key algorithms, flags, and signature validation metrics are displayed to verify DNS trust integrity.

Primary Use Cases

• Checking if a domain is protected against DNS cache poisoning and spoofing.
• Auditing DS (Delegation Signer) records published at parent top-level domain registries.
• Confirming registrar DNSSEC integration status.

Common Security Pitfalls

• Enabling DNSSEC on your registrar without configuring correct DS records at your DNS host, causing complete domain name resolution failure.
• Using weak/deprecated hashing algorithms (like SHA-1) in signature keys.

Frequently Asked Questions

How does DNSSEC protect my website?

DNSSEC signs DNS records cryptographically. When a browser resolves your site, it validates the signature chain, preventing middleman attacks from redirecting users to fake servers.

Does DNSSEC encrypt my DNS traffic?

No. DNSSEC only validates signatures and authenticity. It does not encrypt DNS queries; for encryption, use DNS-over-HTTPS (DoH) or DNS-over-TLS (DoT).

References & Standards

• RFC 4033: DNS Security Introduction and Requirements