Page loading errors
Incident Lifecycle
Incident Timeline
Monitoring
A fix has been deployed and system performance is improving. Intermittent errors, slow page loads, and delays for email and SMS sends are recovering. We continue to monitor closely.
May 19, 2026 at 5:17 PM UTC
Identified
We have identified the cause of the intermittent errors and slow page loads some customers are experiencing in the Klaviyo app. Some customers may also be experiencing delays of up to 20 minutes for email and SMS sends, as well as delays in flows that send push notifications. Our engineering team is deploying a fix.
May 19, 2026 at 4:46 PM UTC
Investigating
Customers may be experiencing intermittent errors and slow page loads in the Klaviyo app. Our engineering team is actively investigating. We'll provide updates as soon as more information is available.
May 19, 2026 at 4:11 PM UTC
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