All Systems Operational

Uptime over the past 90 days. View historical uptime.
Substack publications Operational
90 days ago
100.0 % uptime
Today
Writer dashboards Operational
90 days ago
100.0 % uptime
Today
Email delivery Operational
90 days ago
100.0 % uptime
Today
Subscription invoice processing Operational
90 days ago
100.0 % uptime
Today
Substack.com Operational
90 days ago
100.0 % uptime
Today
Push Notifications Operational
90 days ago
100.0 % uptime
Today
Custom domains Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Sep 7, 2026

No incidents reported today.

Sep 6, 2026

No incidents reported.

Sep 5, 2026

No incidents reported.

Sep 4, 2026

No incidents reported.

Sep 3, 2026

No incidents reported.

Sep 2, 2026

No incidents reported.

Sep 1, 2026

No incidents reported.

Aug 31, 2026

No incidents reported.

Aug 30, 2026

Delays in post delivery stats
Resolved - This incident has been resolved.
Aug 30, 11:40 PDT
Monitoring - A fix has been implemented and we are monitoring the results.
Aug 30, 10:22 PDT
Identified - The issue has been identified and a fix is being implemented.
Aug 30, 08:59 PDT
Investigating - Posts and notes are sending, but delivery stats are experiencing delays.
Aug 30, 08:17 PDT

Aug 29, 2026

No incidents reported.

Aug 28, 2026

No incidents reported.

Aug 27, 2026

No incidents reported.

Aug 26, 2026

No incidents reported.

Aug 25, 2026

No incidents reported.

Aug 24, 2026

No incidents reported.

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