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Klaviyo: Widespread Access Outage

Klaviyo's status page listed this on 20 Oct 2025. Lasted 32.1 h, filed against Shopify, Klaviyo App, Email Sending, Server-side, Email Sending, Sign-up Forms, Email Deliverability, Lists, Segments, Text Message Deliverability, Text Message Sending, WooCommerce, Consent Pages, Profiles, BigCommerce, Mobile Push Sending, Magento, Reviews, Klaviyo Marketing, Processing, Other and Analytics. This is their record, not a measurement of ours.

Check my store freeIs Klaviyo down now?

What happened

Started
Resolved
Lasted32.1 h
What failedShopify, Klaviyo App, Email Sending, Server-side, Email Sending, Sign-up Forms, Email Deliverability, Lists, Segments, Text Message Deliverability, Text Message Sending, WooCommerce, Consent Pages, Profiles, BigCommerce, Mobile Push Sending, Magento, Reviews, Klaviyo Marketing, Processing, Other and Analytics
Their impactCritical

Regions: their page does not say which. Ours checks from three cities, and the screen we saw is on our own incident pages, where there is one.

What Klaviyo said

On their page: Widespread Access Outage

Klaviyo's status page: “Segmentation processing has been restored to real-time. Segments relying on custom object properties remain delayed and we're continuing to restore normal processing for these. We expect flow sending to be fully caught up within the next hour. We continue to process delayed conversion attribution analytics and delayed profile unsubscribes.”Monitoring
Klaviyo's status page: “Flow sending is fully caught up and restored to real-time. We continue to process delayed conversion attribution analytics and delayed profile unsubscribes.”Monitoring
Klaviyo's status page: “As of 7:32pm EST, we have successfully processed the delayed unsubscribe events and conversion attribution analytics has been restored. We continue to monitor service functionality as repairs have been completed.”Monitoring
Klaviyo's status page: “All services have been restored and are operating normally. Monitoring is complete, and this incident has been resolved. We appreciate your patience throughout this incident.”Resolved

Their incident page

What our own check saw

Nothing of ours failed that day, which is worth knowing: their incident did not reach the parts we check, or we were not checking Klaviyo yet.

Every incident, ours and theirs

Was your store affected?

If you sell through Klaviyo, this is a window worth checking. Bilby walks your store now, tries to buy something, and shows you the screen where it stopped. Free.

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A Bilby report: the step that failed, ringed, with what it costsThe email Bilby sends before breakfast
What you get: the broken step, ringed, and what it costs you.
navaal.ai/status/klaviyo/2025-10-20-widespread-access-outage · copied from Klaviyo's status page · every incident · RSS. Not affiliated with Klaviyo.