# Substack in April 2022: incidents, uptime and changes

> Substack in April 2022: 4 incidents on its status page (1 major or critical), 99.65% 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/2022/04
Last updated: 2022-05-01T00:00:00Z

- Incidents posted: 4 (major/critical: 1) · Maintenance: 1
- By vendor impact label: major 1, minor 2, none 1
- Uptime (vendor-reported): 99.65% free of major/critical incidents, 98.79% free of any incident; outage time 2 h 27 min, incident time 8 h 41 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [March 2022](https://rewindex.com/company/substack/2022/03.md) · Next: [May 2022](https://rewindex.com/company/substack/2022/05.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 |
| --- | --- | --- | --- | --- | --- |
| [Scheduled emails are not being sent to some subscribers](https://rewindex.com/company/substack/incidents/3bpc41r3qyqc.md) | major | 2022-04-21 13:03 UTC | 2022-04-21 15:30 UTC | 2.5 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Duplicate Email Sends and Delayed Sends](https://rewindex.com/company/substack/incidents/dv1dkrf77dfz.md) | minor | 2022-04-08 23:58 UTC | 2022-04-09 01:34 UTC | 1.6 h | resolved |
| [Potential double sends of scheduled posts](https://rewindex.com/company/substack/incidents/b01bxb3v55lm.md) | none | 2022-04-09 18:35 UTC | 2022-04-09 20:10 UTC | 1.6 h | resolved |
| [Scheduled emails are not being sent to some subscribers](https://rewindex.com/company/substack/incidents/3bpc41r3qyqc.md) | major | 2022-04-21 13:03 UTC | 2022-04-21 15:30 UTC | 2.5 h | resolved |
| [Delayed email sends](https://rewindex.com/company/substack/incidents/kpkxr4d1fbnd.md) | minor | 2022-04-29 20:48 UTC | 2022-04-30 01:26 UTC | 4.6 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Scheduled database maintenance](https://rewindex.com/company/substack/incidents/vds3k5bmlmhh.md) | maintenance | 2022-04-08 02:20 UTC | 2022-04-08 11:46 UTC | 9.4 h | resolved |

## Cite this

Substack posted 4 status incidents in April 2022 (1 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/substack/2022/04
- Citation: Substack, “Substack in April 2022” (2022-04-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/substack/2022/04 (CC BY 4.0).
- Markdown link: `[Substack: Substack in April 2022 (2022-04-01)](https://rewindex.com/company/substack/2022/04)`


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Canonical: https://rewindex.com/company/substack/2022/04 · Markdown: https://rewindex.com/company/substack/2022/04.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T10:59:50.924Z