Minor Issue - Functionality - Error accessing xAPI Statement Viewer across FRA, UK, and US Swimlanes
Identified - Cornerstone Engineering has identified the issue and is currently working on a fix. We will update once the issue is Resolved.
Sep 04, 2026 - 16:02 PDT
Update - We are continuing to investigate this issue and will share an update at least every 2 hours or until we have more.
Sep 04, 2026 - 14:48 PDT
Investigating - This swimlane is experiencing some functional issues accessing the xAPI Statement viewer and may have issues with xAPI statement processing. Clients with portals in this swimlane may experience delays or issues executing some tasks. This is our top priority and we are working to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.
Sep 04, 2026 - 12:53 PDT

About This Site

Welcome to Cornerstone System Status Dashboard!

This page shows the system status for the Cornerstone SaaS environments.
Downtime is when a swimlane is not accessible by 25% or more of our customers by any login method and the incident resides with Cornerstone (rather than the customer's connection). This excludes any planned maintenance , patch or release (please see calendar linked to the bottom left of this page)

The current status column is updated in near-real time to reflect any ongoing production issues.
You can Subscribe to updates via Email/SMS and Web hook by clicking the "Subscribe to updates" option just below the Cornerstone Banner.

Uptime over the past 90 days. View historical uptime.
US SL4 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
AU SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
JP SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
Uptime Operational
90 days ago
100.0 % uptime
Today
UK SL1 (AWS) Partial Outage
90 days ago
99.61 % uptime
Today
Uptime Operational
90 days ago
99.73 % uptime
Today
Response Time Partial Outage
90 days ago
99.48 % uptime
Today
UK SL2 (AWS) Partial Outage
90 days ago
99.58 % uptime
Today
Uptime Operational
90 days ago
99.73 % uptime
Today
Response Time Partial Outage
90 days ago
99.42 % uptime
Today
UK SL3 (AWS) Partial Outage
90 days ago
99.61 % uptime
Today
Uptime Operational
90 days ago
99.73 % uptime
Today
Response Time Partial Outage
90 days ago
99.48 % uptime
Today
UK SL4 (AWS) Operational
90 days ago
99.98 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
99.97 % uptime
Today
CDG SL1 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
100.0 % uptime
Today
CDG SL4 (AWS) Operational
90 days ago
100.0 % uptime
Today
Uptime Operational
90 days ago
100.0 % uptime
Today
Response Time Operational
90 days ago
100.0 % uptime
Today
FRA SL1 (AWS) Partial Outage
90 days ago
99.84 % uptime
Today
Uptime Operational
90 days ago
99.89 % uptime
Today
Response Time Partial Outage
90 days ago
99.79 % uptime
Today
US SL1 (AWS) Partial Outage
90 days ago
99.96 % uptime
Today
Uptime Operational
90 days ago
99.98 % uptime
Today
Response Time Partial Outage
90 days ago
99.94 % uptime
Today
US SL2 (AWS) Partial Outage
90 days ago
99.96 % uptime
Today
Uptime Operational
90 days ago
99.98 % uptime
Today
Response Time Partial Outage
90 days ago
99.94 % uptime
Today
US SL3 (AWS) Partial Outage
90 days ago
99.98 % uptime
Today
Uptime Operational
90 days ago
99.98 % uptime
Today
Response Time Partial Outage
US SL5 (AWS) Partial Outage
90 days ago
99.97 % uptime
Today
Uptime Operational
90 days ago
99.97 % uptime
Today
Response Time Partial Outage
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Scheduled Maintenance

Patch 26.02.04 - CSOD Data Centers at EU/FR/UK Sep 4, 2026 17:30-19:30 PDT

Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Posted on Sep 01, 2026 - 03:25 PDT

Patch 26.02.04 - CSOD Data Centers at US Sep 4, 2026 21:00-23:00 PDT

Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Posted on Sep 01, 2026 - 03:23 PDT

Sep 4, 2026

Patch 26.02.04 - CSOD Data Centers at AU/JP
Completed - The scheduled maintenance has been completed.
Sep 4, 08:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 4, 06:00 PDT
Scheduled - Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Sep 1, 03:26 PDT

Sep 3, 2026

Major Issue: Career Site is not unavailable for FRA SL1
Resolved - This incident has been resolved.
Sep 3, 09:12 PDT
Update - We are continuing to monitor for any further issues.
Sep 3, 05:04 PDT
Monitoring - Career Site is now accessible. We'll keep monitoring the portals.
Sep 3, 05:03 PDT
Identified - A production incident occurred in the EU Production environment hosted in Frankfurt (FRA PRD), resulting in the Careersite service becoming completely unavailable.

This incident has been classified as a high-severity issue. Resolving this problem is our top priority, and we are working diligently to restore service as quickly as possible.
Sep 3, 04:52 PDT
Minor Issue - Latency - US Swimlanes
Resolved - This incident has been resolved.
Sep 3, 05:56 PDT
Monitoring - A fix has been implemented and we are monitoring the results.
Sep 2, 10:16 PDT
Investigating - The swimlane is experiencing some latency issues. Clients with portals across US Swimlanes may experience delays or issues accessing certain pages in the application. This is our top priority and we are working to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.
Sep 2, 09:16 PDT

Sep 2, 2026

Minor Issue - Edge Import issues on FRA and CDG Swimlanes
Resolved - The CSOD Technology Team observed an issue affecting Edge Import on FRA and CDG swimlanes.
The problem began on September 2nd 2026, at 10:00 PM Pacific Time and was resolved on September 2nd 2026, at 11:30 PM Pacific Time. During this time, clients may have experienced issues or delays with Edge Import functionalities.
Sep 2, 22:00 PDT

Sep 1, 2026

Unable to login to the portal : US SL 5
Resolved - The CSOD Technology Team observed a service disruption on US SL5. The issue began at 6:47 AM Pacific Time and service was restored at 6:56 AM Pacific Time. During this time, clients with portals on this swimlane were unable to access the application.

Following a brief period of monitoring, the fix remains stable and the service continues to operate as expected.
Sep 1, 07:43 PDT
Monitoring - We have received confirmation from the CSOD Engineering team that the issue has been fixed and the service has been fully restored.

Our Engineering team is currently monitoring the fix to ensure its reliability and stability. We will provide further updates if there are any additional developments.
Sep 1, 07:15 PDT
Investigating - Clients on US SL5 may encounter errors or issues when attempting to log in to Production. Our Engineering team has identified the root cause on the backend and is actively working on a fix as the highest priority. We will continue to provide regular updates as they become available.
Sep 1, 07:02 PDT

Aug 31, 2026

No incidents reported.

Aug 30, 2026

No incidents reported.

Aug 29, 2026

No incidents reported.

Aug 28, 2026

Major Issue: Career Site is not unavailable for FRA SL1
Resolved - After a period of monitoring and no recurrence, this is resolved.
Aug 28, 12:14 PDT
Monitoring - A fix has been implemented and we are monitoring the results.
Aug 28, 11:03 PDT
Update - We are continuing to investigate this issue.
Aug 28, 11:00 PDT
Investigating - A production incident occurred in the EU Production environment hosted in Frankfurt (FRA PRD), resulting in the Careersite service becoming completely unavailable.

This incident has been classified as a high-severity issue. Resolving this problem is our top priority, and we are working diligently to restore service as quickly as possible.

Please check back periodically for additional updates, which will be posted as they become available.
Aug 28, 09:11 PDT

Aug 27, 2026

Career Site not accessible for CDG SL1
Resolved - A production incident occurred in the EU production environment, impacting Career Sites hosted in CDG SL1. As of 3:35 AM PT the portals are back to function.
Aug 27, 02:00 PDT

Aug 26, 2026

No incidents reported.

Aug 25, 2026

Resolved - Service Disruption
Resolved - Production environment on AU, JP, FR, US swimlanes were experiencing a service disruption when accessing from CHINA region. Issue lasted around 50 minutes.

The CSOD Technology Team observed a service disruption on these swimlanes. Our engineering team has resolved the issue and services are back to normal for users in China.
Aug 25, 20:33 PDT

Aug 24, 2026

Latency on US SL5
Postmortem - Read details
Sep 3, 07:31 PDT
Resolved - The CSOD Technology Team observed a performance degradation affecting the US SL5 swimlane. The problem began at 4:25 AM Pacific Time and was resolved at 6:35 AM Pacific Time. During this time, clients with portals on this swim lane may have experienced slow performance or intermittent errors while accessing the application.
Aug 24, 07:05 PDT
Investigating - The US SL5 swim lane is experiencing some latency issues. Clients with portals in this swimlane may experience delays or issues accessing certain pages in the application. This is our top priority and we are working to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.
Aug 24, 05:49 PDT

Aug 23, 2026

No incidents reported.

Aug 22, 2026

No incidents reported.

Aug 21, 2026

Patch 26.02.03 - CSOD Data Centers at US
Completed - The scheduled maintenance has been completed.
Aug 21, 23:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 21, 21:00 PDT
Update - We will be undergoing scheduled maintenance during this time.
Aug 21, 02:29 PDT
Scheduled - Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Aug 21, 02:29 PDT
Patch 26.02.03 - CSOD Data Centers at EU/FR/UK
Completed - The scheduled maintenance has been completed.
Aug 21, 19:30 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 21, 17:30 PDT
Scheduled - Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Aug 21, 02:27 PDT
Patch 26.02.03 - CSOD Data Centers at AU/JP
Completed - The scheduled maintenance has been completed.
Aug 21, 08:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 21, 06:00 PDT
Scheduled - Users may experience a slight degradation in service like increased latency and/or portals may be temporarily unavailable for up to 20 minutes while we deploy the latest Software Application Code. We thank you for your cooperation as we continue to add best in class features and functionality to the Cornerstone Cloud Platform.
Aug 21, 02:25 PDT
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