Outage in Substack

Substack is experiencing issues

Resolved Minor

December 22, 2025 - Started about 1 month ago - Lasted about 1 hour
Official incident page

Incident Report

We are currently observing increased latency on Substack surfaces and are investigating the issue.

Components affected

Substack .com

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Latest Updates ( sorted recent to last )

RESOLVED about 1 month ago - at 12/23/2025 12:13AM

This incident has been resolved.

MONITORING about 1 month ago - at 12/22/2025 11:52PM

A fix has been implemented and we are monitoring the results.

INVESTIGATING about 1 month ago - at 12/22/2025 11:31PM

We are currently observing increased latency on Substack surfaces and are investigating the issue.

Latest Substack outages

Issues loading Notes - 12 days ago

Elevated latencies - 13 days ago

Delays in audio read-aloud processing. - 22 days ago

Substack is experiencing issues - 2 months ago

Push notifications delayed on iOS - 3 months ago

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