FedRAMP authorization isn't a finish line — it's an ongoing continuous monitoring (ConMon) obligation, with monthly deliverables, change control expectations, and NIST SP 800-53 controls your 3PAO revisits annually. DNS is part of your authorization boundary's edge, and ZoneWatcher keeps it inventoried, monitored, and documented.
DNS at the Authorization Boundary
Your DNS records define how agencies reach your cloud service offering: the endpoints in your SSP diagrams, the email paths for official correspondence, the certificate landscape your customers trust. FedRAMP also takes DNS integrity seriously enough to mandate DNSSEC (SC-20 and SC-21) for authorized services. An unnoticed record change at this layer is a boundary change nobody approved.
Relevant 800-53 Controls
CM-8 — System Component Inventory
Your inventory workbook has to stay accurate between assessments. ZoneWatcher auto-discovers DNS records across your providers and keeps that slice of the inventory current automatically, so the DNS entries in your ConMon deliverables reflect reality rather than the last manual sweep.
CM-3 — Configuration Change Control
FedRAMP expects changes within the boundary to be controlled, documented, and reviewable — and significant changes to follow the change request process. ZoneWatcher's change history documents every DNS modification with timestamps and before/after values, and change management workflows let planned changes carry review and approval.
SI-4 & AU-6 — System Monitoring and Audit Review
Continuous monitoring is the heart of ConMon. ZoneWatcher watches DNS records, nameservers, WHOIS data, and TLS certificates around the clock — including Certificate Transparency logs for certificates issued against your domains — and produces the reviewable audit trail AU-6 expects.
IR-4 & IR-6 — Incident Handling and Reporting
FedRAMP incident reporting runs on tight timelines — suspected incidents go to your agency customers and US-CERT within an hour of confirmation. Real-time DNS change alerts give your security operations the earliest possible trigger, and the change history supports the incident report's what-and-when narrative.
Evidence for ConMon and Annual Assessment
A continuously accurate DNS component inventory for your boundary documentation
Change control evidence for every DNS modification, with attribution where known
Demonstrable 24/7 monitoring of DNS, WHOIS, and certificate posture
Alerting evidence feeding your incident response procedures
Point-in-time PDF reports scoped to a ConMon month or assessment period
Because the same evidence maps back through the NIST catalogs, it also serves NIST CSF profiles and StateRAMP programs built on the same controls.
A note on certifications
This guide explains how ZoneWatcher helps your organization prepare for its own audit against this framework. It is not a claim that ZoneWatcher holds this certification. For details on how we secure ZoneWatcher itself, see our security overview.
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