Companies / Klaviyo / incidents
Klaviyo: Login and page loading issues
Klaviyo reported a critical incident preventing some customers from logging in or loading app pages, starting 2026-10-08 15:00 UTC and resolved at 2026-10-08 16:13 UTC (reported duration: 1 h 12 min). A fix restored access; campaign and flow sending were not impacted, and customers logged out during the incident may need to log in again.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Affected components: Klaviyo AppPlatform - Klaviyo App
Timeline of updates
- investigating
We are investigating reports that some customers are unable to log in to Klaviyo or are seeing pages load slowly or not at all. Our team is actively working to restore normal access. We will share another update as soon as we have more information.
- investigating
We are continuing to investigate issues preventing some customers from logging in to Klaviyo or loading pages in the app. We have not seen any impact to campaign or flow sending. We will share another update as soon as we have more information.
- identified
The issue has been identified and a fix is being implemented.
- monitoring
A fix has been deployed, and customers should now be able to log in to Klaviyo and load pages normally. If you were logged out during this incident, you may need to log in again. We continue to monitor closely and appreciate your patience throughout this incident.
- resolved
Customers can now log in to Klaviyo and load pages normally, and the system remains stable. This incident has been resolved.
Rewindex changes for this incident
- Critical incident: Login and page loading issues 2026-10-08 15:00 UTC
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Klaviyo profile · Recent Klaviyo incidents · Markdown · JSON