# What broke on 2026-03-27

- Incidents: 50 at 34 providers; major outages: 4
- Downtime: 4d 5h

## Worst
- **Anthropic**: [Elevated error rates on Opus 4.6](https://down.guide/DWN-9c9ce2719b) (Partial outage; lasted 9h 47m; started 2026-03-27 06:59 UTC; claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com) +2)
- **Amplitude**: [Amplitude Experiment Issue with Charts Loading](https://down.guide/DWN-9a5468f88a) (Major outage; lasted 1h 19m; started 2026-03-27 15:52 UTC; Web Application)
- **Grafana Cloud**: [Some Grafana Instances Unavailable](https://down.guide/DWN-2c96d6f0b0) (Partial outage; lasted 7h 13m; started 2026-03-27 13:36 UTC; AWS Australia - prod-au-southeast-1, AWS Australia - prod-au-southeast-2, AWS Brazil - prod-sa-east-1 +28; ap-northeast-0, ap-south-0, ap-south-1, ap-southeast-0)
- **Bandwidth**: [Outbound Calling Incident](https://down.guide/DWN-39fdbf093a) (Major outage; lasted 8h 11m; started 2026-03-27 14:06 UTC; Outbound Calling (SIP) - United States; us)
- **Grammarly**: [The Grammarly Editor is not working as expected](https://down.guide/DWN-11c8033847) (Major outage; lasted 17m; started 2026-03-27 18:14 UTC; Grammarly Editor)
- **Snowflake**: [Developer Tools affected](https://down.guide/DWN-67659d723b) (Partial outage; lasted 3d 3h; started 2026-03-27 18:34 UTC; Developer Tools, Developer Tools, Developer Tools +47; us)
- **BrowserStack**: [Test Management is facing issues](https://down.guide/DWN-08451d1498) (Major outage; lasted 2m; started 2026-03-27 14:50 UTC; Test Authoring & Management - Test Cases, Test Plans, Exploratory Sessions)
- **Hostinger**: [cPanel DNS intermittent performance issues](https://down.guide/DWN-896c4c179c) (Partial outage; lasted 2d 14h; started 2026-03-27 18:20 UTC)
- **GitBook**: [Degraded API performance](https://down.guide/DWN-d15cdfcb5c) (Partial outage; lasted 4h 4m; started 2026-03-27 14:43 UTC)
- **Imperva**: [\[INC-1001\] Imperva GRE Performance Dashboard Issue across Multiple Data Center](https://down.guide/DWN-80c7f38d21) (Partial outage; lasted 3h 39m; started 2026-03-27 11:17 UTC; Network DDoS Management)

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