How to Build a Continuous DNS Compliance Program for SOC 2, ISO 27001 and PCI-DSS

Organizations subject to frameworks like SOC 2, ISO 27001, NIS2, and PCI-DSS v4.0 are increasingly expected to provide continuous evidence of DNS control rather than point-in-time audit snapshots. DNS governs critical compliance areas including email authentication records, certificate issuance controls, asset inventory, and third-party delegations, yet most compliance tooling largely ignores it. A practical continuous DNS compliance program begins with full discovery of every domain and subdomain, including those inherited through acquisitions or created outside central IT. Subsequent steps involve establishing compliant configuration baselines, monitoring for unauthorized changes, and generating ongoing audit-ready evidence. The approach aims to transform DNS from a recurring audit liability into a documented and continuously validated security control.