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.

Aug 29, 2026

No incidents reported today.

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.

Aug 23, 2026

No incidents reported.

Aug 22, 2026

No incidents reported.

Aug 21, 2026

No incidents reported.

Aug 20, 2026

No incidents reported.

Aug 19, 2026

No incidents reported.

Aug 18, 2026

No incidents reported.

Aug 17, 2026
Issues loading Notes
Resolved - This incident has been resolved.
Aug 17, 21:54 PDT
Investigating - We are currently investigating this issue.
Aug 17, 21:23 PDT
Aug 16, 2026

No incidents reported.

Aug 15, 2026

No incidents reported.

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