DNSSEC (Domain Name System Security Extensions) uses digital signatures on DNS data to verify that responses are genuine. It helps prevent spoofing attempts and cache poisoning by allowing resolvers to validate DNS data before use.
Key steps to enable DNSSEC: 1. Choose a DNS provider that supports DNSSEC end-to-end. 2. Plan secure key management for ZSK and KSK. 3. Sign your zone data correctly. 4. Publish the correct DS record at the parent zone (registrar). 5. Test validation through resolvers and monitor rollover/changes carefully.