Checkmk SaaS - Notice history

All systems operational

Admin Panel - Operational

100.0% uptime
Sep 2025 · 100.0%Oct · 100.0%Nov · 100.0%

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Sep 2025
Oct 2025
Nov 2025

Checkmk Sites hosted in the EU - Operational

99.97% uptime
Sep 2025 · 100.0%Oct · 100.0%Nov · 99.90%

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Sep 2025
Oct 2025
Nov 2025

Checkmk Sites hosted in the US - Operational

99.97% uptime
Sep 2025 · 100.0%Oct · 100.0%Nov · 99.90%

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Sep 2025
Oct 2025
Nov 2025

Notice history

View current status

Nov 2025

We are investigating authentication issues with Checkmk SaaS Sites
ResolvedMajor outage41 minutes
  • ResolvedUTC
    This incident has been resolved.
  • MonitoringUTC
    We implemented a fix and are currently monitoring the result.
  • InvestigatingUTC
    We are currently investigating this incident.

Oct 2025

OCT31
System maintenance
CompletedMaintenance45 hours
  • CompletedNovember 02, 2025 at 12:00 PMUTC
    Maintenance has completed successfully
  • In progressOctober 31, 2025 at 3:00 PMUTC
    Maintenance is now in progress
  • PlannedOctober 31, 2025 at 3:00 PMUTC

    During this period, license activation and creating new licensed sites will be unavailable.
    Service will be fully restored once maintenance is completed.

Checkmk sites cannot be created in the US
ResolvedDegraded performance10 hours 19 minutes
  • ResolvedUTC

    This incident has been resolved. Dependent AWS services have fully recovered.

  • UpdateUTC

    Email notifications are fully recovered, however the creation of new Checkmk sites in the US region is still impaired.

  • UpdateUTC

    Email notifications for Checkmk sites hosted in the US have started to experience issues. We are monitoring the developments closely.

  • UpdateUTC

    All email notifications have been re-queued, checkmk site creation is still in the process of recovering.

  • MonitoringUTC

    Most impacted AWS operations are recovering, we are monitoring the process.

  • IdentifiedUTC

    Due to an AWS STS outage in the US region, checkmk sites cannot be created in the US and email notifications from the US region are not being forwarded. We are keeping a close watch on any AWS updates on the issue.

OCT14
Upgrade to Admin Panel Email Gateway
CompletedMaintenance2 hours
  • CompletedOctober 14, 2025 at 7:00 AMUTC
    Maintenance is now in progress
  • In progressOctober 14, 2025 at 5:00 AMUTC
    Maintenance is now in progress
  • PlannedOctober 14, 2025 at 5:00 AMUTC

    What: we are upgrading our Admin Panel Email Gateway

    Downtime: no downtime for our existing service

    Impact: Everything will continue to work as usual except for email confirmation for new account sign-ups or password resets. During the maintenance window, new users will not be able to receive the activation code needed to complete registration or the password reset email.

Sep 2025

No notices reported this month

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