# Substack monthly reports

> 76 monthly reports for Substack: incidents, vendor-reported uptime, price and policy page changes, deprecations and CVEs per month, from January 2020 to October 2026.

Canonical: https://rewindex.com/company/substack/reports
Last updated: 2026-11-01T00:00:00Z

| Month | Incidents | Major/critical | Outage time (vendor-reported) | Price changes | Page changes | Deprecations | CVEs |
| --- | --- | --- | --- | --- | --- | --- | --- |
| [October 2026](https://rewindex.com/company/substack/2026/10.md) | 2 | 0 | 0 min | 0 | 3 | 0 | 0 |
| [August 2026](https://rewindex.com/company/substack/2026/08.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [July 2026](https://rewindex.com/company/substack/2026/07.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [June 2026](https://rewindex.com/company/substack/2026/06.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [May 2026](https://rewindex.com/company/substack/2026/05.md) | 0 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [April 2026](https://rewindex.com/company/substack/2026/04.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [March 2026](https://rewindex.com/company/substack/2026/03.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [February 2026](https://rewindex.com/company/substack/2026/02.md) | 4 | 2 | 2 h 27 min | 0 | 0 | 0 | 0 |
| [January 2026](https://rewindex.com/company/substack/2026/01.md) | 3 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [December 2025](https://rewindex.com/company/substack/2025/12.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [November 2025](https://rewindex.com/company/substack/2025/11.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [October 2025](https://rewindex.com/company/substack/2025/10.md) | 2 | 1 | 11 h 11 min | 0 | 0 | 0 | 0 |
| [September 2025](https://rewindex.com/company/substack/2025/09.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [August 2025](https://rewindex.com/company/substack/2025/08.md) | 3 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [June 2025](https://rewindex.com/company/substack/2025/06.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [May 2025](https://rewindex.com/company/substack/2025/05.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [April 2025](https://rewindex.com/company/substack/2025/04.md) | 2 | 1 | 1 h 2 min | 0 | 0 | 0 | 0 |
| [March 2025](https://rewindex.com/company/substack/2025/03.md) | 3 | 1 | 28 min | 0 | 0 | 0 | 0 |
| [February 2025](https://rewindex.com/company/substack/2025/02.md) | 2 | 1 | 1 h 24 min | 0 | 0 | 0 | 0 |
| [January 2025](https://rewindex.com/company/substack/2025/01.md) | 3 | 1 | 53 min | 0 | 0 | 0 | 0 |
| [December 2024](https://rewindex.com/company/substack/2024/12.md) | 2 | 1 | 29 min | 0 | 0 | 0 | 0 |
| [October 2024](https://rewindex.com/company/substack/2024/10.md) | 5 | 1 | 1 h 2 min | 0 | 0 | 0 | 0 |
| [September 2024](https://rewindex.com/company/substack/2024/09.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [August 2024](https://rewindex.com/company/substack/2024/08.md) | 3 | 3 | 3 h 11 min | 0 | 0 | 0 | 0 |
| [July 2024](https://rewindex.com/company/substack/2024/07.md) | 3 | 1 | 18 min | 0 | 0 | 0 | 0 |
| [June 2024](https://rewindex.com/company/substack/2024/06.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [May 2024](https://rewindex.com/company/substack/2024/05.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [April 2024](https://rewindex.com/company/substack/2024/04.md) | 6 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [March 2024](https://rewindex.com/company/substack/2024/03.md) | 3 | 1 | 1 h 18 min | 0 | 0 | 0 | 0 |
| [February 2024](https://rewindex.com/company/substack/2024/02.md) | 5 | 3 | 3 h | 0 | 0 | 0 | 0 |
| [November 2023](https://rewindex.com/company/substack/2023/11.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [September 2023](https://rewindex.com/company/substack/2023/09.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [August 2023](https://rewindex.com/company/substack/2023/08.md) | 3 | 3 | 1 h 19 min | 0 | 0 | 0 | 0 |
| [July 2023](https://rewindex.com/company/substack/2023/07.md) | 4 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [June 2023](https://rewindex.com/company/substack/2023/06.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [May 2023](https://rewindex.com/company/substack/2023/05.md) | 1 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [April 2023](https://rewindex.com/company/substack/2023/04.md) | 3 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [March 2023](https://rewindex.com/company/substack/2023/03.md) | 2 | 1 | 10 min | 0 | 0 | 0 | 0 |
| [February 2023](https://rewindex.com/company/substack/2023/02.md) | 2 | 2 | 4 h 51 min | 0 | 0 | 0 | 0 |
| [January 2023](https://rewindex.com/company/substack/2023/01.md) | 3 | 2 | 3 h 49 min | 0 | 0 | 0 | 0 |
| [December 2022](https://rewindex.com/company/substack/2022/12.md) | 5 | 1 | 3 h 26 min | 0 | 0 | 0 | 0 |
| [November 2022](https://rewindex.com/company/substack/2022/11.md) | 7 | 3 | 53 min | 0 | 0 | 0 | 0 |
| [October 2022](https://rewindex.com/company/substack/2022/10.md) | 6 | 2 | 23 min | 0 | 0 | 0 | 0 |
| [September 2022](https://rewindex.com/company/substack/2022/09.md) | 3 | 2 | 13 min | 0 | 0 | 0 | 0 |
| [August 2022](https://rewindex.com/company/substack/2022/08.md) | 4 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [July 2022](https://rewindex.com/company/substack/2022/07.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [June 2022](https://rewindex.com/company/substack/2022/06.md) | 3 | 2 | 11 h 57 min | 0 | 0 | 0 | 0 |
| [May 2022](https://rewindex.com/company/substack/2022/05.md) | 3 | 1 | 3 h 7 min | 0 | 0 | 0 | 0 |
| [April 2022](https://rewindex.com/company/substack/2022/04.md) | 4 | 1 | 2 h 27 min | 0 | 0 | 0 | 0 |
| [March 2022](https://rewindex.com/company/substack/2022/03.md) | 4 | 1 | 3 h 12 min | 0 | 0 | 0 | 0 |
| [February 2022](https://rewindex.com/company/substack/2022/02.md) | 4 | 2 | 5 h 53 min | 0 | 0 | 0 | 0 |
| [January 2022](https://rewindex.com/company/substack/2022/01.md) | 5 | 2 | 4 h 7 min | 0 | 0 | 0 | 0 |
| [December 2021](https://rewindex.com/company/substack/2021/12.md) | 3 | 1 | 13 min | 0 | 0 | 0 | 0 |
| [November 2021](https://rewindex.com/company/substack/2021/11.md) | 5 | 3 | 2 h 8 min | 0 | 0 | 0 | 0 |
| [October 2021](https://rewindex.com/company/substack/2021/10.md) | 5 | 4 | 1 h 51 min | 0 | 0 | 0 | 0 |
| [September 2021](https://rewindex.com/company/substack/2021/09.md) | 6 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [August 2021](https://rewindex.com/company/substack/2021/08.md) | 2 | 1 | 27 min | 0 | 0 | 0 | 0 |
| [July 2021](https://rewindex.com/company/substack/2021/07.md) | 2 | 1 | 3 h 16 min | 0 | 0 | 0 | 0 |
| [June 2021](https://rewindex.com/company/substack/2021/06.md) | 4 | 2 | 2 h 59 min | 0 | 0 | 0 | 0 |
| [May 2021](https://rewindex.com/company/substack/2021/05.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [April 2021](https://rewindex.com/company/substack/2021/04.md) | 2 | 1 | 2 h 50 min | 0 | 0 | 0 | 0 |
| [March 2021](https://rewindex.com/company/substack/2021/03.md) | 4 | 4 | 3 h 32 min | 0 | 0 | 0 | 0 |
| [February 2021](https://rewindex.com/company/substack/2021/02.md) | 5 | 2 | 57 min | 0 | 0 | 0 | 0 |
| [January 2021](https://rewindex.com/company/substack/2021/01.md) | 3 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [December 2020](https://rewindex.com/company/substack/2020/12.md) | 0 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [November 2020](https://rewindex.com/company/substack/2020/11.md) | 4 | 2 | 21 min | 0 | 0 | 0 | 0 |
| [October 2020](https://rewindex.com/company/substack/2020/10.md) | 3 | 1 | 33 min | 0 | 0 | 0 | 0 |
| [September 2020](https://rewindex.com/company/substack/2020/09.md) | 5 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [August 2020](https://rewindex.com/company/substack/2020/08.md) | 4 | 2 | 2 h 45 min | 0 | 0 | 0 | 0 |
| [July 2020](https://rewindex.com/company/substack/2020/07.md) | 2 | 0 | 0 min | 0 | 0 | 0 | 0 |
| [June 2020](https://rewindex.com/company/substack/2020/06.md) | 3 | 2 | 9 h 47 min | 0 | 0 | 0 | 0 |
| [May 2020](https://rewindex.com/company/substack/2020/05.md) | 6 | 4 | 4 h 3 min | 0 | 0 | 0 | 0 |
| [April 2020](https://rewindex.com/company/substack/2020/04.md) | 4 | 1 | 1 h 56 min | 0 | 0 | 0 | 0 |
| [March 2020](https://rewindex.com/company/substack/2020/03.md) | 2 | 2 | 1 h 26 min | 0 | 0 | 0 | 0 |
| [February 2020](https://rewindex.com/company/substack/2020/02.md) | 1 | 1 | 46 min | 0 | 0 | 0 | 0 |
| [January 2020](https://rewindex.com/company/substack/2020/01.md) | 2 | 1 | 0 min | 0 | 0 | 0 | 0 |

_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._


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Canonical: https://rewindex.com/company/substack/reports · Markdown: https://rewindex.com/company/substack/reports.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T10:18:00.871Z