DNS inspection and monitoring
Understand the records behind your domain without pretending that public DNS exposes a complete zone.
Live inspection
The free checker queries A, AAAA, MX, NS, TXT and SOA records, including the DMARC hostname. A directed hostname lookup supports CNAME, CAA, HTTPS, SVCB, DS, DNSKEY and other supported types. Enter the exact hostname or DKIM selector you want to inspect.
Subdomain discovery
Common names, DNS references and available certificate names are investigated. Only names with current DNS answers appear as discovered subdomains. Results can be limited and wildcard answers are identified. A full zone requires access to the DNS provider or an authoritative export.
Planned monitoring
Stored DNS snapshots, unexpected-change alerts and recurring configuration comparisons are planned. The current uptime monitor resolves addresses for safety, but does not provide DNS change monitoring.