Active Directory & DNS Cleanup
Clear out years of clutter and fix what's quietly broken.
Hands-on remediation of the mess that accumulates in every long-running directory — stale accounts, orphaned objects, broken DNS, and replication issues — so AD is lean, healthy, and trustworthy again.
The problem
Active Directory and DNS are rarely cleaned up; they just grow. Over the years you accumulate thousands of stale user and computer accounts, empty and nested groups nobody understands, orphaned SIDs, duplicate and stale DNS records, missing scavenging, and quiet replication errors. The result is a bloated attack surface, confusing access, slow logons, and an environment no one fully trusts. Most teams know it needs cleaning but never have the time — or want a steady hand so cleanup doesn't break production.
What's included
- Discovery and reporting of stale users, computers, and inactive accounts
- Empty, redundant, and circular group cleanup with nesting analysis
- Orphaned SID, SID history, and unresolved permission remediation
- DNS hygiene: stale record cleanup, scavenging/aging configuration, and zone review
- Replication health check and remediation across all domain controllers
- Group Policy review — unlinked, orphaned, and conflicting GPO cleanup
- FSMO, DNS, and subnet/site topology validation
- A safe, staged remediation plan with disable-before-delete and backups
Typical timeline
Inventory
1 weekReport on stale objects, DNS, GPOs, and replication.
Plan
1 weekAgree a staged, reversible remediation plan.
Remediate
2–4 weeksDisable, validate, then remove in safe waves.
Automate
1 weekStand up recurring hygiene so clutter stays gone.
Frequently asked questions
Only if it's done carelessly. We always disable before deleting, stage changes in waves with a retention window, and take backups first. Nothing is permanently removed until it's been validated as safe.
Ready to secure your identity foundation?
Book a free 30-minute discovery call. We'll talk through your environment and where the biggest wins are — no obligation.