Outage in Cal.com
Degraded Service - Cal.com
Resolved Minor
September 15, 2026 - Started 10 days ago
- Lasted 6 minutes
Incident Report
Summary AI Generated
Cal.com experienced a 6-minute performance degradation on September 15, 2026, beginning at 18:00 UTC, caused by a high-volume query flooding the system and creating resource contention across the App and API. Scheduling and booking flows were slowed as a result. Engineers resolved the issue by reverting the change that introduced the query, with system metrics stabilizing shortly after.
We have identified the root cause of the ongoing performance degradation affecting Cal.com. An high-volume query began flooding our system starting at 18:00 UTC, leading to resource contention and slower response times.
Our engineering team has successfully reverted the change that introduced the query. We are now observing system metrics stabilize as services recover. Core scheduling and booking flows should progressively return to normal.
We will continue to monitor closely and provide a final resolution update shortly.
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Latest Updates ( sorted recent to last )
IDENTIFIED
10 days ago - at 09/15/2026 07:08PM
We have identified the root cause of the ongoing performance degradation affecting Cal.com. An high-volume query began flooding our system starting at 18:00 UTC, leading to resource contention and slower response times.
Our engineering team has successfully reverted the change that introduced the query. We are now observing system metrics stabilize as services recover. Core scheduling and booking flows should progressively return to normal.
We will continue to monitor closely and provide a final resolution update shortly.
IDENTIFIED
10 days ago - at 09/15/2026 06:55PM
We are currently investigating reports of degraded performance affecting the Cal.com web application
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