# Substack in January 2021: incidents, uptime and changes

> Substack in January 2021: 3 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/2021/01
Last updated: 2021-02-01T00:00:00Z

- Incidents posted: 3 (major/critical: 0) · Maintenance: 0
- By vendor impact label: minor 1, none 2
- Uptime (vendor-reported): 100% free of major/critical incidents, 90.41% free of any incident; outage time 0 min, incident time 3.0 days
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [December 2020](https://rewindex.com/company/substack/2020/12.md) · Next: [February 2021](https://rewindex.com/company/substack/2021/02.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 |
| --- | --- | --- | --- | --- | --- |
| [Substack publication websites not loading](https://rewindex.com/company/substack/incidents/vqblwq9j03kw.md) | none | 2021-01-07 03:30 UTC | 2021-01-07 03:30 UTC | 0 min | resolved |
| [Issues with cloud service provider](https://rewindex.com/company/substack/incidents/j42v9ncxj4xd.md) | none | 2021-01-07 18:37 UTC | 2021-01-07 21:58 UTC | 3.4 h | resolved |
| [Open Rate Reporting Incident](https://rewindex.com/company/substack/incidents/py13df5d30v0.md) | minor | 2021-01-19 18:37 UTC | 2021-01-22 17:57 UTC | 3 d | resolved |

## Cite this

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

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


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Canonical: https://rewindex.com/company/substack/2021/01 · Markdown: https://rewindex.com/company/substack/2021/01.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T10:18:05.330Z