Supported CloudWatch metrics - AWS Certificate Manager
This documentation is a draft for private preview for regions in the AWS European Sovereign Cloud. Documentation content will continue to evolve. Published: January 6, 2026.

Supported CloudWatch metrics

Amazon CloudWatch is a monitoring service for AWS resources. You can use CloudWatch to collect and track metrics, set alarms, and automatically react to changes in your AWS resources. ACM publishes metrics twice per day for every certificate in an account until expiration.

The AWS/CertificateManager namespace includes the following metric.

Metric Description Unit Dimensions
DaysToExpiry Number of days until a certificate expires. ACM stops publishing this metric after a certificate expires. Integer CertificateArn

  • Value: ARN of the certificate

For more information about CloudWatch metrics, see the following topics: