Datadog US1 experienced a major incident on March 26, 2026 affecting Monitors, lasting 5h 32m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Mar 26, 2026, 02:24 PM UTC
We are investigating delays in monitor notifications, which began at 12:00 UTC.
- investigating Mar 26, 2026, 02:55 PM UTC
We are continuing investigating delays in monitor notifications that started at 12:00 UTC.
- investigating Mar 26, 2026, 03:32 PM UTC
We are still continuing investigating delays in monitor notifications that started at 12:00 UTC. We've identified the root cause and are working on a fix.
- investigating Mar 26, 2026, 04:11 PM UTC
We are continuing to investigate delays in monitor notifications.
- identified Mar 26, 2026, 04:48 PM UTC
The issue has been identified and a fix is being implemented.
- identified Mar 26, 2026, 05:28 PM UTC
We are continuing to work on a fix for this issue.
- identified Mar 26, 2026, 06:38 PM UTC
We are continuing to work on a fix for this issue.
- identified Mar 26, 2026, 07:07 PM UTC
We are continuing to work on a fix for this issue.
- monitoring Mar 26, 2026, 07:42 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Mar 26, 2026, 07:56 PM UTC
This incident has been resolved.