# Substack in May 2021: incidents, uptime and changes

> Substack in May 2021: 2 incidents on its status page (0 major or critical), 100% 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/2021/05
Last updated: 2021-06-01T00:00:00Z

- Incidents posted: 2 (major/critical: 0) · Maintenance: 1
- By vendor impact label: none 2
- Uptime (vendor-reported): 100% free of major/critical incidents, 100% free of any incident; outage time 0 min, incident time 0 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [April 2021](https://rewindex.com/company/substack/2021/04.md) · Next: [June 2021](https://rewindex.com/company/substack/2021/06.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._

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Writer dashboard statistics are unavailable](https://rewindex.com/company/substack/incidents/dg5x97gnvnm1.md) | none | 2021-05-03 23:15 UTC | 2021-05-04 01:54 UTC | 2.6 h | resolved |
| [Substack is slow or unresponsive](https://rewindex.com/company/substack/incidents/y1zlvsjd2k5p.md) | none | 2021-05-06 15:33 UTC | 2021-05-06 16:39 UTC | 1.1 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Update to the Publisher Analytics Database](https://rewindex.com/company/substack/incidents/l5rljstgzzns.md) | maintenance | 2021-05-03 23:01 UTC | 2021-05-03 23:04 UTC | 3 min | resolved |

## Cite this

Substack posted 2 status incidents in May 2021 (0 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/substack/2021/05
- Citation: Substack, “Substack in May 2021” (2021-05-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/substack/2021/05 (CC BY 4.0).
- Markdown link: `[Substack: Substack in May 2021 (2021-05-01)](https://rewindex.com/company/substack/2021/05)`


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Canonical: https://rewindex.com/company/substack/2021/05 · Markdown: https://rewindex.com/company/substack/2021/05.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T10:18:06.248Z