# Substack in March 2025: incidents, uptime and changes

> Substack in March 2025: 3 incidents on its status page (1 major or critical), 99.93% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Substack’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/substack/2025/03
Last updated: 2025-04-01T00:00:00Z

- Incidents posted: 3 (major/critical: 1) · Maintenance: 0
- By vendor impact label: major 1, minor 1, none 1
- Uptime (vendor-reported): 99.93% free of major/critical incidents, 99.75% free of any incident; outage time 28 min, incident time 1 h 49 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [February 2025](https://rewindex.com/company/substack/2025/02.md) · Next: [April 2025](https://rewindex.com/company/substack/2025/04.md) · [All months](https://rewindex.com/company/substack/reports.md) · [Substack](https://rewindex.com/company/substack.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## Major and critical incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Errors loading notes feed](https://rewindex.com/company/substack/incidents/5p1hndywfy1y.md) | major | 2025-03-24 23:41 UTC | 2025-03-25 00:09 UTC | 28 min | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Issues loading Notes](https://rewindex.com/company/substack/incidents/17lwfdgmpx0w.md) | none | 2025-03-01 15:38 UTC | 2025-03-01 22:37 UTC | 7.0 h | resolved |
| [Email delivery delays](https://rewindex.com/company/substack/incidents/1nn1fd6jpxrl.md) | minor | 2025-03-11 16:43 UTC | 2025-03-11 17:35 UTC | 52 min | resolved |
| [Errors loading notes feed](https://rewindex.com/company/substack/incidents/5p1hndywfy1y.md) | major | 2025-03-24 23:41 UTC | 2025-03-25 00:09 UTC | 28 min | resolved |

## Cite this

Substack posted 3 status incidents in March 2025 (1 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/substack/2025/03
- Citation: Substack, “Substack in March 2025” (2025-03-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/substack/2025/03 (CC BY 4.0).
- Markdown link: `[Substack: Substack in March 2025 (2025-03-01)](https://rewindex.com/company/substack/2025/03)`


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Canonical: https://rewindex.com/company/substack/2025/03 · Markdown: https://rewindex.com/company/substack/2025/03.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T13:33:02.991Z