Substack outage, 20 October 2025

Post emails delayed

Started
Resolved
21 Oct 2025, 00:52 UTC (after 11 h 11 min)
Impact
Major
Affected
Email delivery

Last update from Substack

This incident has been resolved.

21 Oct 2025, 00:52 UTC

Read the full incident on the official Substack status page

Is Substack down now?

This page is the record of one past incident. For the live status, see Is Substack down right now? - it reads the official status page every 2 minutes.

Other Substack incidents

  1. Elevated latencies

  2. Delays in post delivery stats

  3. Issues loading Notes

  4. Issues loading media on Substack

  5. Delays in post delivery

  6. Service degraded due to a provider.

  7. Issue with reported open rates

  8. We're aware of an issue causing delays in publisher stats

All recorded Substack incidents