Active Directory Health Check

Active Directory health check tool

An Active Directory health check is essential for maintaining a secure, efficient, and compliant IT infrastructure. As the backbone of identity and access management for most enterprises, Active Directory requires continuous monitoring to ensure optimal performance and security.

ADManager Plus delivers an automated Active Directory Health Check report that provides complete visibility into your Active Directory and Microsoft 365 environments. This proactive Active Directory health monitoring capability enables IT administrators to identify issues, optimize performance, and maintain security compliance across hybrid infrastructures.

The Health Check report is accessible through the Support tab in ADManager Plus and it evaluates critical aspects of your environment, from server performance to security configurations, ensuring your directory services remain operational and secure.

Why perform an Active Directory health check

Regular health assessments help organizations proactively address vulnerabilities and maintain business continuity. Here are the key reasons to check Active Directory health on a consistent basis:

1. Prevent service disruptions and downtime

Regular Active Directory health check activities help identify potential issues before they impact users. By monitoring disk space utilization, server resources, domain controller connectivity, and replication status, administrators can address problems proactively, preventing costly outages and maintaining business continuity.

2. Strengthen security posture

An Active Directory health check tool reveals security vulnerabilities such as accounts with expired passwords, users who have never logged on, disabled MFA configurations, inactive user accounts, and weak security group configurations. Identifying these risks allows IT teams to remediate security gaps and reduce attack surfaces.

3. Maintain compliance requirements

Organizations subject to regulatory standards (HIPAA, SOX, GDPR, PCI-DSS) must demonstrate proper infrastructure monitoring and access management. An Active Directory health check generates audit-ready reports showing continuous monitoring, change management, and security controls implementation. Access certification campaigns help validate user permissions and group memberships.

4. Optimize infrastructure performance

Health checks identify inefficiencies such as stale user accounts, empty security groups, circular group memberships, deep nested groups, and redundant groups. Addressing these issues improves Active Directory query performance, reduces administrative overhead, and optimizes license utilization.

5. Support hybrid environment management

As organizations adopt Microsoft 365 and hybrid identity models, monitoring both on-premises Active Directory and cloud tenants becomes critical. Regular health checks ensure synchronization between environments remains functional and secure, tracking both synced users and cloud-only users.

How to perform an Active Directory health check

Organizations can check Active Directory health using various methods, from native Windows tools to comprehensive third-party solutions.

Native Active Directory health check commands

Administrators can use built-in Windows tools and Active Directory health check commands to assess Active Directory health:

• Repadmin: Diagnose replication issues with commands like repadmin /replsummary and repadmin /showrepl
• Dcdiag: Test domain controller health with dcdiag /v for comprehensive diagnostics
• Nltest: Verify domain trust relationships using nltest /dsgetdc:domain
• Active Directory Administrative Center: Review Active Directory objects and attributes through the GUI interface

While these Active Directory health check commands provide valuable insights, they require manual execution, technical expertise to interpret results, and lack centralized reporting capabilities.

PowerShell scripts for Active Directory health monitoring

PowerShell offers more flexibility for Active Directory health monitoring. Administrators can create custom scripts to:

• Query user account status and identify inactive accounts
• Check group policy replication across domain controllers
• Monitor domain controller services and connectivity
• Export health data for analysis and reporting

For more PowerShell-based Active Directory management capabilities, visit our PowerShell management page. However, PowerShell scripts require ongoing maintenance, version compatibility management, and substantial scripting knowledge.

Automated Active Directory health check tools

Dedicated Active Directory health check tool solutions like ADManager Plus eliminate manual work by providing:

• Automated scheduling: Run health checks automatically on defined intervals
• Centralized dashboards: View Active Directory and Microsoft 365 health from a single console
• Prebuilt reports: Generate comprehensive health assessments without scripting
• Alerting capabilities: Receive notifications when issues are detected
• Historical tracking: Monitor health trends over time

Check Active Directory health using ADManager Plus

ADManager Plus provides a comprehensive Health Check report that evaluates your entire hybrid identity infrastructure.

Active Directory health summary

The Active Directory section evaluates the health of each configured domain:

• Object summary: Get a snapshot of your directory objects, including total users, workstations, groups, and domain controllers. The report flags potential risks such as inactive users (30 days), disabled accounts, expired passwords, and users who have never logged on.
• Domain health metrics: View an overall risk score, domain controller replication status with error analysis, DC connectivity duration, access certification campaign status, and JITgroup membership configuration.

Group hygiene report

The hygiene report identifies violations of Active Directory group management best practices. It detects issues such as accounts with direct permissions bypassing group-based access, improper group nesting (circular groups, deep nested groups), domain local groups with cross-domain membership, and redundant or duplicate groups. Addressing these violations improves query performance and reduces administrative overhead.

Microsoft 365 health summary

For hybrid environments, the report evaluates your Microsoft 365 tenant health. It tracks total users, inactive and blocked accounts, MFA status, guest users, and the breakdown of hybrid (synced) versus cloud-only users. Group health metrics identify empty groups, and an overall tenant risk score provides quick visibility into your cloud environment's security posture.

Audit report summary

Both Active Directory and Microsoft 365 sections include an audit summary showing the most frequent actions performed in the last 30 days, providing visibility into administrative activities across your environment.

Start using ADManager Plus to automate your Active Directory health check process and gain complete visibility into your hybrid identity infrastructure. The Health Check report is available through the Support tab and provides actionable insights to keep your Active Directory environment secure and compliant.