●Incident

Klaviyo API outage.

ResolvedDEGRADATION · HIGH

Aug 11, 2026, 05:41 PM · 3 months ago · Duration: 52min

Detected by Probecast

Incident Summary

API Klaviyo API is currently DOWN in europe.

Diagnostic Details

Error Type: http HTTP Status: 502 Error Message: API returned HTTP 502 Retry Attempts: 1 (all failed)

Validation Results

Validation Reason: DOWN in multiple regions: us-east, us-west + europe Consecutive DOWN Checks: 2 Time Between Checks: 320s

Cross-Region Impact

Also DOWN in: us-east, us-west Total Affected Regions: 3

Severity Assessment

Level: HIGH Multiple regions affected or critical error type detected.

Detected by Probecast Health Monitor - 2026-08-11T17:41:02.720Z

Timeline

●Started

Aug 11, 2026, 05:41 PM

3 months ago

●Resolved

Aug 11, 2026, 06:33 PM

3 months ago

●Duration

52min

Total downtime

Evidence Logs5 checks

Time	Region	Status	Latency	Code
Aug 11, 05:40 PM	europe	down	102ms	502
Aug 11, 05:38 PM	us-east	down	10000ms	—
Aug 11, 05:36 PM	us-west	down	93ms	502

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