DNS & Email Trust
high Severity
Free Check

DNSSEC Validation & Signatures

Validates Domain Name System Security Extensions (DNSSEC) to prevent DNS spoofing and cache poisoning attacks.

Test Your Website for DNSSEC Validation & Signatures

Run this check along with 90+ automated tests across your domain.

Why It Matters

Without DNSSEC, attackers can poison recursive DNS resolvers to silently divert your web traffic to malicious replica servers.

How We Check This

We send a DNS query with the DNSSEC OK (DO) flag and check for valid RRSIG and DS records.

How to Fix & Implement

Copy-paste configuration blocks tailored for your web server or edge proxy.

nginx snippet
# Enable DNSSEC in your domain registrar (e.g., Namecheap, GoDaddy) using DS records provided by your DNS host

Frequently Asked Questions

Does DNSSEC encrypt DNS queries?

No. DNSSEC provides cryptographic authentication and integrity of DNS responses, not privacy/encryption (which is handled by DoH/DoT).