Substack Outage History

Substack is up right now

Pingoru has recorded 52 incidents for Substack: 18 in the last 12 months and 4 in the last 90 days.

Source: substack.statuspage.io

52incidents recorded
18last 12 months
4last 90 days
3 daystypical duration
Incidents per month
012AprMayJunJulAugSepOctNov0
Share of hours with an open incident, any severity
0%50%100%AprMayJunJulAugSepOctNov0%
Pingoru began tracking Substack in April 2026, so earlier months are not shown. Hover a bar for its value.
Show as a table
MonthIncidentsHours with an open incident
April 202610 of 720 (0%)
May 202600 of 744 (0%)
June 202610 of 720 (0%)
July 202616 of 744 (1%)
August 202621 of 744 (0%)
September 202600 of 720 (0%)
October 202621 of 744 (0%)
November 202600 of 19 (0%)

Incidents, newest first

Minor October 29, 2026 Increased latency on post publishing 1h 24m Substack publications, Writer dashboards

Started Oct 29, 2026, 03:12 AM UTC· resolved Oct 29, 2026, 04:36 AM UTC

  1. identified Oct 29, 2026, 03:12 AM UTC

    Publishing and post updates are slower than usual, and recent edits to published posts may take time to appear. We're working on a fix.

  2. identified Oct 29, 2026, 03:16 AM UTC

    We are continuing to work on a fix for this issue.

  3. resolved Oct 29, 2026, 04:36 AM UTC

    This incident has been resolved.

Read the full incident report →

Notice October 9, 2026 Elevated latencies 54m Substack.com

Started Oct 09, 2026, 10:37 PM UTC· resolved Oct 09, 2026, 11:32 PM UTC

  1. investigating Oct 09, 2026, 10:37 PM UTC

    Substack is experiencing elevated latencies. We are investigating the issue.

  2. monitoring Oct 09, 2026, 10:59 PM UTC

    We are seeing recovery and are monitoring the situation.

  3. resolved Oct 09, 2026, 11:32 PM UTC

    The incident has been resolved.

Read the full incident report →

Notice August 30, 2026 Delays in post delivery stats 3h 23m Writer dashboards

Started Aug 30, 2026, 03:17 PM UTC· resolved Aug 30, 2026, 06:40 PM UTC

  1. investigating Aug 30, 2026, 03:17 PM UTC

    Posts and notes are sending, but delivery stats are experiencing delays.

  2. identified Aug 30, 2026, 03:59 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring Aug 30, 2026, 05:22 PM UTC

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

  4. resolved Aug 30, 2026, 06:40 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor August 18, 2026 Issues loading Notes 31m Substack.com

Started Aug 18, 2026, 04:23 AM UTC· resolved Aug 18, 2026, 04:54 AM UTC

  1. investigating Aug 18, 2026, 04:23 AM UTC

    We are currently investigating this issue.

  2. resolved Aug 18, 2026, 04:54 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 16, 2026 Issues loading media on Substack 5h 54m Substack.com

Started Jul 16, 2026, 10:06 AM UTC· resolved Jul 16, 2026, 04:01 PM UTC

  1. investigating Jul 16, 2026, 10:06 AM UTC

    We're aware of an issue affecting how some media loads on Substack (particularly images).

  2. monitoring Jul 16, 2026, 11:22 AM UTC

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

  3. resolved Jul 16, 2026, 04:01 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice June 3, 2026 Delays in post delivery 52m Email delivery

Started Jun 03, 2026, 01:58 PM UTC· resolved Jun 03, 2026, 02:50 PM UTC

  1. investigating Jun 03, 2026, 01:58 PM UTC

    We are experiencing delays in post email delivery due to an outage from a third party service provider.

  2. monitoring Jun 03, 2026, 02:16 PM UTC

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

  3. resolved Jun 03, 2026, 02:50 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice April 22, 2026 Service degraded due to a provider. 1h 36m Substack publications, Writer dashboards, Email delivery, Subscription invoice processing and 3 more

Started Apr 22, 2026, 07:12 PM UTC· resolved Apr 22, 2026, 08:48 PM UTC

  1. investigating Apr 22, 2026, 07:12 PM UTC

    We are experiencing an issue with a provider.

  2. identified Apr 22, 2026, 07:36 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring Apr 22, 2026, 07:45 PM UTC

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

  4. resolved Apr 22, 2026, 08:48 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice March 27, 2026 Issue with reported open rates 44d 19h Email delivery

Started Mar 27, 2026, 10:20 PM UTC· resolved May 11, 2026, 05:55 PM UTC

  1. investigating Mar 27, 2026, 10:20 PM UTC

    We’re investigating an issue affecting reported open rates for some publishers. Current evidence suggests this is related to how Gmail loads tracking pixels, and does not indicate a change in engagement or deliverability. We take responsibility for ensuring these metrics are accurate and are prioritizing improvements to our open rate tracking so this is resolved as quickly as possible. We will continue to provide updates here as we learn more.

  2. resolved May 11, 2026, 05:55 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor February 27, 2026 We're aware of an issue causing delays in publisher stats 2h 53m Writer dashboards

Started Feb 27, 2026, 12:41 AM UTC· resolved Feb 27, 2026, 03:35 AM UTC

  1. identified Feb 27, 2026, 12:41 AM UTC

    The issue has been identified and a fix is being implemented.

  2. resolved Feb 27, 2026, 03:35 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor February 26, 2026 Publisher Stats Loading 32m Writer dashboards

Started Feb 26, 2026, 11:10 PM UTC· resolved Feb 26, 2026, 11:43 PM UTC

  1. investigating Feb 26, 2026, 11:10 PM UTC

    We're aware of an issue affecting loading publisher stats

  2. identified Feb 26, 2026, 11:40 PM UTC

    The issue has been identified and a fix is being implemented.

  3. resolved Feb 26, 2026, 11:43 PM UTC

    This incident has been resolved.

Read the full incident report →

Major February 12, 2026 Substack Availability Issues 1h 5m Substack publications, Writer dashboards, Substack.com

Started Feb 12, 2026, 11:25 PM UTC· resolved Feb 13, 2026, 12:31 AM UTC

  1. investigating Feb 12, 2026, 11:25 PM UTC

    We are currently investigating this issue.

  2. identified Feb 12, 2026, 11:42 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring Feb 12, 2026, 11:43 PM UTC

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

  4. resolved Feb 13, 2026, 12:31 AM UTC

    This incident has been resolved.

Read the full incident report →

Major February 11, 2026 Substack Availability Issues 1h 21m Substack publications, Writer dashboards, Substack.com

Started Feb 11, 2026, 02:24 PM UTC· resolved Feb 11, 2026, 03:45 PM UTC

  1. investigating Feb 11, 2026, 02:24 PM UTC

    We are investigating an issue loading substack.com

  2. identified Feb 11, 2026, 02:41 PM UTC

    We've identified the issue and are deploying changes to address.

  3. identified Feb 11, 2026, 02:53 PM UTC

    We are continuing to work to restore service. Currently all Substack clients and services are experiencing elevated error rates and degraded performance.

  4. identified Feb 11, 2026, 02:57 PM UTC

    We are continuing to work on a fix for this issue.

  5. identified Feb 11, 2026, 03:10 PM UTC

    We have deployed a fix and are continuing to see recovery.

  6. monitoring Feb 11, 2026, 03:15 PM UTC

    All Substack services have been restored and error rates and latency have returned to normal levels. Our team is continuing to monitor.

  7. resolved Feb 11, 2026, 03:45 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice January 15, 2026 Issues loading Notes 14m Substack.com

Started Jan 15, 2026, 12:35 PM UTC· resolved Jan 15, 2026, 12:50 PM UTC

  1. investigating Jan 15, 2026, 12:35 PM UTC

    We're currently investigating an issue affecting load times of notes and inboxes

  2. monitoring Jan 15, 2026, 12:47 PM UTC

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

  3. resolved Jan 15, 2026, 12:50 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice January 14, 2026 Elevated latencies 3h 8m

Started Jan 14, 2026, 05:38 PM UTC· resolved Jan 14, 2026, 08:47 PM UTC

  1. investigating Jan 14, 2026, 05:38 PM UTC

    Substack is experiencing elevated latencies. We are working to investigate the issue.

  2. monitoring Jan 14, 2026, 07:25 PM UTC

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

  3. resolved Jan 14, 2026, 08:47 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice January 5, 2026 Delays in audio read-aloud processing. 12h 19m

Started Jan 05, 2026, 05:17 PM UTC· resolved Jan 06, 2026, 05:36 AM UTC

  1. investigating Jan 05, 2026, 05:17 PM UTC

    We're experiencing a delay in processing the automated read-alouds for posts in the apps.

  2. resolved Jan 06, 2026, 05:36 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor December 22, 2025 Substack is experiencing issues 41m Substack.com

Started Dec 22, 2025, 11:31 PM UTC· resolved Dec 23, 2025, 12:13 AM UTC

  1. investigating Dec 22, 2025, 11:31 PM UTC

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

  2. monitoring Dec 22, 2025, 11:52 PM UTC

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

  3. resolved Dec 23, 2025, 12:13 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor November 18, 2025 Substack is experiencing issues 37m Substack publications, Writer dashboards, Substack.com, Custom domains

Started Nov 18, 2025, 02:39 PM UTC· resolved Nov 18, 2025, 03:16 PM UTC

  1. investigating Nov 18, 2025, 02:39 PM UTC

    We are experiencing issues caused by a service provider, some access to Substack might be limited

  2. monitoring Nov 18, 2025, 02:45 PM UTC

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

  3. resolved Nov 18, 2025, 03:16 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice November 5, 2025 Push notifications delayed on iOS 46m Push Notifications

Started Nov 05, 2025, 04:52 PM UTC· resolved Nov 05, 2025, 05:38 PM UTC

  1. identified Nov 05, 2025, 04:52 PM UTC

    We are experiencing delays due to a service provider outage.

  2. monitoring Nov 05, 2025, 05:29 PM UTC

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

  3. resolved Nov 05, 2025, 05:38 PM UTC

    This incident has been resolved.

Read the full incident report →

Major October 20, 2025 Post emails delayed 11h 11m Email delivery

Started Oct 20, 2025, 01:41 PM UTC· resolved Oct 21, 2025, 12:52 AM UTC

  1. investigating Oct 20, 2025, 01:41 PM UTC

    We are experiencing delays with processing scheduled posts related to an outage from one of our service providers. Our team is investigating.

  2. investigating Oct 20, 2025, 01:49 PM UTC

    We are also seeing issues with publication dashboards including partial outages across the subscriber tab and some statistics. We are working to mitigate.

  3. identified Oct 20, 2025, 02:12 PM UTC

    We are seeing recovery of our publisher dashboard functionality. Other service functions such as scheduled posts continue to be degraded.

  4. identified Oct 20, 2025, 04:51 PM UTC

    We continue to experience delays with processing scheduled posts related to an outage from one of our service providers. Users can publish posts manually to bypass this. Our team is still investigating.

  5. monitoring Oct 20, 2025, 09:50 PM UTC

    Scheduled post sends are operational and we have caught up with the backlog.

  6. resolved Oct 21, 2025, 12:52 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor October 4, 2025 Post notifications are delayed 4h 22m Email delivery, Push Notifications

Started Oct 04, 2025, 04:06 PM UTC· resolved Oct 04, 2025, 08:29 PM UTC

  1. investigating Oct 04, 2025, 04:06 PM UTC

    We are experiencing delays in sending out email and push notifications for published posts.

  2. identified Oct 04, 2025, 04:25 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring Oct 04, 2025, 07:22 PM UTC

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

  4. resolved Oct 04, 2025, 08:29 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice September 20, 2025 Post email delivery is delayed 1h 42m Email delivery

Started Sep 20, 2025, 02:42 PM UTC· resolved Sep 20, 2025, 04:25 PM UTC

  1. investigating Sep 20, 2025, 02:42 PM UTC

    We are currently investigating this issue.

  2. monitoring Sep 20, 2025, 04:08 PM UTC

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

  3. resolved Sep 20, 2025, 04:25 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor September 15, 2025 Substack experiencing increased latency 3h 47m Substack publications, Writer dashboards, Email delivery, Substack.com and 1 more

Started Sep 15, 2025, 03:24 PM UTC· resolved Sep 15, 2025, 07:12 PM UTC

  1. investigating Sep 15, 2025, 03:24 PM UTC

    We are currently investigating reports of increased latency and slow response times across Substack.

  2. investigating Sep 15, 2025, 03:34 PM UTC

    We are continuing to investigate increased latency and error rates across Substack.

  3. identified Sep 15, 2025, 03:42 PM UTC

    We have identified an issue and are seeing normal performance across all systems.

  4. identified Sep 15, 2025, 03:50 PM UTC

    We are continuing to investigate increased latency and error rates across Substack.

  5. identified Sep 15, 2025, 04:38 PM UTC

    We are working to resolve the remaining performance issues across Substack and expect to see recovery shortly.

  6. monitoring Sep 15, 2025, 04:46 PM UTC

    We are seeing recovery of performance across Substack and are monitoring the issue.

  7. monitoring Sep 15, 2025, 04:53 PM UTC

    As part of the earlier incident, we are noting delays in analytics updating and post email delivery. We are working to resolve the issue.

  8. identified Sep 15, 2025, 05:43 PM UTC

    We are seeing recurrence of increased error rates and degraded performance across Substack.

  9. monitoring Sep 15, 2025, 06:39 PM UTC

    Substack is operating normally and our team is monitoring.

  10. resolved Sep 15, 2025, 07:12 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice August 30, 2025 Delay in sending scheduled posts 15m Email delivery

Started Aug 30, 2025, 04:17 PM UTC· resolved Aug 30, 2025, 04:32 PM UTC

  1. identified Aug 30, 2025, 04:17 PM UTC

    We are investigating a delay in the sending of scheduled posts.

  2. monitoring Aug 30, 2025, 04:30 PM UTC

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

  3. resolved Aug 30, 2025, 04:32 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice August 26, 2025 Livestream creation not working 38m

Started Aug 26, 2025, 02:06 PM UTC· resolved Aug 26, 2025, 02:45 PM UTC

  1. investigating Aug 26, 2025, 02:06 PM UTC

    We are experiencing an issue with a service provider that is causing livestream creation to be broken.

  2. resolved Aug 26, 2025, 02:45 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice August 11, 2025 Unable to sign in on the Android app 19m

Started Aug 11, 2025, 04:15 PM UTC· resolved Aug 11, 2025, 04:35 PM UTC

  1. investigating Aug 11, 2025, 04:15 PM UTC

    We are currently investigating this issue.

  2. monitoring Aug 11, 2025, 04:27 PM UTC

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

  3. resolved Aug 11, 2025, 04:35 PM UTC

    This incident has been resolved.

Read the full incident report →