Substack incident

Substack Availability Issue

Resolved after 11 hours 33 minutes, affecting Substack publications and Writer dashboards and 1 more, on June 23, 2025.

monitoring Jun 23, 2025, 06:14 PM UTC

Continuing to bring systems back online. Writer dashboard stats including open rates may be delayed or temporarily inaccurate.

Started: Jun 23, 2025, 05:45 PM UTC
Resolved: Jun 24, 2025, 05:19 AM UTC
Duration: 11h 33m
Detected by Pingoru: Jun 23, 2025, 05:45 PM UTC

Affected components

Substack publicationsWriter dashboardsEmail deliverySubscription invoice processingSubstack.comPush NotificationsCustom domains

Update timeline

investigating Jun 23, 2025, 05:45 PM UTC

We are currently investigating a higher error rate when trying to load Substack
identified Jun 23, 2025, 05:51 PM UTC

The issue has been identified and a fix is being implemented.
monitoring Jun 23, 2025, 06:04 PM UTC

Restored functionality on Substack.com and app. We are continuing to work on a fix for some delays in email delivery.
monitoring Jun 23, 2025, 06:14 PM UTC

Continuing to bring systems back online. Writer dashboard stats including open rates may be delayed or temporarily inaccurate.
resolved Jun 24, 2025, 05:19 AM UTC

This incident has been resolved.

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