●Incident
Klaviyo API outage.
ResolvedDEGRADATION · HIGHAug 11, 2026, 05:41 PM · about 9 hours ago · Duration: 52min
Incident Summary
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
about 9 hours ago
●Resolved
Aug 11, 2026, 06:33 PM
about 8 hours 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 |
Track Klaviyo reliability
This isn't Klaviyo's first incident. They had 5 incidents in the last 180 days, averaging 25 minutes of impact.