Klaviyo — Outage
ResolvedDegradation HighApr 25, 2026, 11:10 AM · 1 day ago · Duration: 34min · Regions: us-west
Detected by Probecast
Incident Summary
Incident Summary
API Klaviyo is currently DOWN in us-east.
Diagnostic Details
Error Type: http HTTP Status: 503 Error Message: API returned HTTP 503
Validation Results
Validation Reason: DOWN in 2 regions: asia, us-east Consecutive DOWN Checks: 2 Time Between Checks: 299s
Cross-Region Impact
Also DOWN in: asia Total Affected Regions: 2 Still UP in: europe, us-west
Severity Assessment
Level: MEDIUM Limited regional impact or recoverable error type.
Detected by Probecast Health Monitor - 2026-04-25T11:10:29.985Z
Timeline
Started
Apr 25, 2026, 11:10 AM
1 day ago
Resolved
Apr 25, 2026, 11:45 AM
1 day ago
Duration
34min
Evidence Logs(4 checks)
| Time | Region | Status | Latency | Code |
|---|---|---|---|---|
| Apr 25, 11:10 AM | us-east | down | 113ms | 503 |
| Apr 25, 11:06 AM | asia | down | 264ms | 503 |
| Apr 25, 11:05 AM | us-east | down | 107ms | 503 |
Track Klaviyo reliability
This isn't Klaviyo's first incident. They had 2 incidents in the last 180 days, averaging 35 minutes of impact.