Substack: Substack is experiencing issues
Affected components: Substack.com
Timeline of updates
- investigating
We are currently observing increased latency on Substack surfaces and are investigating the issue.
- monitoring
A fix has been implemented and we are monitoring the results.
- resolved
This incident has been resolved.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
fc1f48abb3b741b8…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by Substack, started 2025-12-22 23:31 UTC, resolved after 42 min, 3 update(s).
- Title
- Substack is experiencing issues
- Vendor
- Substack
- Date
- URL
- https://rewindex.com/company/substack/incidents/p69c5t4srnm0
Substack profileRecent Substack incidentsAll outages on December 22, 2025Substack in December 2025MarkdownJSON