SharkDNS guide
4 min readDNSSEC checker guide
Understand DS, DNSKEY, RRSIG, and NSEC records when reviewing domain DNSSEC posture.
DNSSEC checkerDS recordDNSKEYRRSIGNSEC
When to use it
Use a DNSSEC check when validating whether a domain has signed DNS records and whether the expected DNSSEC-related records are visible publicly.
What to inspect
DS records connect the parent zone to the child zone, DNSKEY records publish signing keys, RRSIG records carry signatures, and NSEC or related records support authenticated denial of existence.
How to interpret missing records
Missing DNSSEC records can mean DNSSEC is not enabled, only partially configured, or not visible from the resolver path being queried. Compare registrar settings and authoritative DNS output.
More SharkDNS Guides
What is DNS lookup used for?
Use DNS lookup to inspect records, verify routing, troubleshoot mail, and compare public DNS visibility.
Reverse IP lookup explained
Find domains observed on the same IPv4 address and understand shared hosting or infrastructure relationships.
Subdomain discovery for asset inventory
Use public subdomain data to build a cleaner domain inventory and find exposed hosts.