# Substack: Critical incident: Substack increased latency and error rate

**Summary:** Substack reported a critical incident with increased latency and errors affecting Substack.com, Substack publications, Writer dashboards, and the Substack app. It started at 2024-08-23 17:36 UTC and was resolved at 2024-08-23 19:06 UTC, lasting 1 h 29 min. Substack said it identified the cause but did not disclose it. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2024-08-23 17:36 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/2z3dm3fs6x7d](https://stspg.io/2z3dm3fs6x7d)
- [Company: Substack](https://rewindex.com/company/substack.md)
- Versions: before (none: first archived) → after incident\_version:261/dnxy5v0kzhrm@be58ef80c2bc
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Substack increased latency and error rate
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2024-08-23 17:36 UTC
```

**5. Added: Resolved time**

```diff
+ 2024-08-23 19:06 UTC
```

**6. Added: Affected components**

```diff
+ Substack.com, Substack publications, Writer dashboards
```

**7. Added: Update** (investigating) · 2024-08-23 17:36 UTC

```diff
+ We are investigating reports of increased errors and Latency from all Substack services.
```

**8. Added: Update** (investigating) · 2024-08-23 17:50 UTC

```diff
+ We have identified the cause of the issue and are working toward resolution. At this time Substack is experiencing degraded performance across the web and Substack app. We are working to resolve as soon as possible.
```

**9. Added: Update** (identified) · 2024-08-23 18:05 UTC

```diff
+ We are continuing to work toward resolution. At this time Substack is experiencing degraded performance across the web and Substack app. We are working to resolve as soon as possible.
```

**10. Added: Update** (identified) · 2024-08-23 18:29 UTC

```diff
+ We are continuing to work toward resolution and anticipate recovery starting shortly. At this time Substack is experiencing degraded performance across the web and Substack app. We are working to resolve as soon as possible.
```

**11. Added: Update** (identified) · 2024-08-23 18:35 UTC

```diff
+ We are beginning to see recovery across Substack. We are continuing to work toward full resolution.
```

**12. Added: Update** (monitoring) · 2024-08-23 18:37 UTC

```diff
+ Substack is operating normally. We are continuing to monitor.
```

**13. Added: Update** (resolved) · 2024-08-23 19:06 UTC

```diff
+ This incident has been resolved and Substack is operating normally.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2024-08-23 17:36 UTC | Critical incident: Substack increased latency and error rate (this change) | degradation |

All Substack changes: [timeline](https://rewindex.com/company/substack/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/icc891e0fd7c6c2 · Markdown: https://rewindex.com/change/icc891e0fd7c6c2.md · JSON: https://rewindex.com/api/v1/changes/icc891e0fd7c6c2 · Generated 2026-10-18T02:31:53.869Z