DNS Check — Audit a Domain's Full Record Set
A DNS check examines a domain's configuration as a whole rather than one record at a time. It collects the nameservers, the address records, the mail routing, and the text records that increasingly carry policy, then reports on how they fit together. The value is in the relationships: plenty of DNS problems are invisible when you look at each record on its own and obvious the moment you see them side by side.
Why run it
Run it when you inherit a domain, when you are about to migrate one, or when something is subtly wrong and you cannot name it. Typical findings are the kind nobody goes looking for: nameservers listed at the registrar that disagree with the ones in the zone, an MX record pointing at a host that no longer exists, a CNAME on a name that also has other records, or two SPF records where the specification permits exactly one. Each is quietly degrading something, and none of them will announce themselves.
Why automate it
A domain audited today drifts. New records are added for a marketing tool and never removed, a subdomain is delegated for a project that ends, a service is decommissioned and its records outlive it by years. Running the audit on a schedule and diffing the result surfaces drift while it is still small, and — because the check covers the whole zone rather than the parts you remember — it catches the additions nobody told you about. That is how an unused subdomain pointing at a deprovisioned cloud host gets found before someone else claims the address.
What it gives you
A whole-domain view instead of a record-at-a-time one, which is the only way to see the problems that live in the relationships between records. Scheduled, it is a standing inventory of a zone that would otherwise only ever be examined during an emergency.