# Sentry outage on 20 October 2026

> On 20 October, Sentry had a major outage in which the Sentry.io dashboard did not load, lasting 3 hours 26 minutes from 18:21 to 21:46 UTC, and the API was also listed as affected from 18:58. Sentry's status page incident ran from 18:20 to 21:38, but its updates said the immediate problem was mitigated by 18:58 and the dashboard and API were operational again by 19:51, with the remaining time spent putting a more durable mitigation in place; the status page did not state a cause. Grammarly, Notion, PointClickCare, Amplitude and Musixmatch also reported problems at the same time.

- Service: [Sentry](https://stackpulse.app/services/sentry.md)
- Severity: major_outage
- Title on the status page: Sentry.io not loading
- Started: 2026-10-20 18:21 UTC
- Ended: 2026-10-20 21:46 UTC
- Lasted: 3 h 26 min
- Incident open on the status page: 18:20–21:38 UTC
- The status page's incident: https://stspg.io/09gv0ryrd5nd
- Page: https://stackpulse.app/services/sentry/outages/2026-10-20-1821

## What broke when (UTC)

| Component | Status | From | To |
|---|---|---|---|
| Dashboard | partial outage | 2026-10-20 18:20 | 2026-10-20 19:51 |
| Dashboard | degraded performance | 2026-10-20 19:51 | 2026-10-20 21:38 |
| API | partial outage | 2026-10-20 18:58 | 2026-10-20 19:51 |
| API | degraded performance | 2026-10-20 19:51 | 2026-10-20 21:38 |

## At the same time

- [Musixmatch](https://stackpulse.app/services/musixmatch.md): issue from 2026-10-20 17:43 UTC
- [Grammarly](https://stackpulse.app/services/grammarly.md): major_outage from 2026-10-20 18:04 UTC
- [PointClickCare](https://stackpulse.app/services/pointclickcare.md): major_outage from 2026-10-20 18:09 UTC
- [Notion](https://stackpulse.app/services/notion.md): major_outage from 2026-10-20 18:47 UTC
- [Amplitude](https://stackpulse.app/services/amplitude.md): issue from 2026-10-20 20:13 UTC
- [Thomson Reuters Legal](https://stackpulse.app/services/thomson-reuters-legal.md): critical from 2026-10-20 20:18 UTC
- [37signals](https://stackpulse.app/services/37signals.md): critical from 2026-10-20 21:28 UTC
- [Canvas by Instructure](https://stackpulse.app/services/canvas-by-instructure.md): issue from 2026-10-20 21:45 UTC

Problems at the same time are a clue, never proof that one caused another.

Stackpulse isn't affiliated with Sentry.