# Substack in November 2021: incidents, uptime and changes

> Substack in November 2021: 5 incidents on its status page (3 major or critical), 99.70% 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/2021/11
Last updated: 2021-12-01T00:00:00Z

- Incidents posted: 5 (major/critical: 3) · Maintenance: 1
- By vendor impact label: critical 1, major 2, minor 1, none 1
- Uptime (vendor-reported): 99.70% free of major/critical incidents, 99.55% free of any incident; outage time 2 h 8 min, incident time 3 h 12 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [October 2021](https://rewindex.com/company/substack/2021/10.md) · Next: [December 2021](https://rewindex.com/company/substack/2021/12.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 |
| --- | --- | --- | --- | --- | --- |
| [Substack is down](https://rewindex.com/company/substack/incidents/p83fh92lmcpd.md) | critical | 2021-11-10 22:04 UTC | 2021-11-10 22:17 UTC | 13 min | resolved |
| [Profiles and categories are down](https://rewindex.com/company/substack/incidents/tbjp5kq10cq5.md) | major | 2021-11-20 00:15 UTC | 2021-11-20 00:44 UTC | 29 min | resolved |
| [Some posts are failing to load](https://rewindex.com/company/substack/incidents/j7zvkrb0pkgd.md) | major | 2021-11-23 22:40 UTC | 2021-11-24 00:06 UTC | 1.4 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Substack is down](https://rewindex.com/company/substack/incidents/p83fh92lmcpd.md) | critical | 2021-11-10 22:04 UTC | 2021-11-10 22:17 UTC | 13 min | resolved |
| [Publication search is returning meaningless results](https://rewindex.com/company/substack/incidents/h1lshkm4rvxh.md) | minor | 2021-11-17 18:42 UTC | 2021-11-17 19:46 UTC | 1.1 h | resolved |
| [The website is down](https://rewindex.com/company/substack/incidents/b5kgkyc4jpc1.md) | none | 2021-11-18 02:12 UTC | 2021-11-18 02:48 UTC | 36 min | resolved |
| [Profiles and categories are down](https://rewindex.com/company/substack/incidents/tbjp5kq10cq5.md) | major | 2021-11-20 00:15 UTC | 2021-11-20 00:44 UTC | 29 min | resolved |
| [Some posts are failing to load](https://rewindex.com/company/substack/incidents/j7zvkrb0pkgd.md) | major | 2021-11-23 22:40 UTC | 2021-11-24 00:06 UTC | 1.4 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Scheduled database maintenance](https://rewindex.com/company/substack/incidents/97rg2sflf53f.md) | maintenance | 2021-11-18 02:03 UTC | 2021-11-18 02:10 UTC | 7 min | resolved |

## Cite this

Substack posted 5 status incidents in November 2021 (3 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/substack/2021/11
- Citation: Substack, “Substack in November 2021” (2021-11-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/substack/2021/11 (CC BY 4.0).
- Markdown link: `[Substack: Substack in November 2021 (2021-11-01)](https://rewindex.com/company/substack/2021/11)`


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Canonical: https://rewindex.com/company/substack/2021/11 · Markdown: https://rewindex.com/company/substack/2021/11.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T10:18:06.828Z