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down.guideby Sazabi
Substack

Substack status history

20 incidents over the last year, newest first; 99.99% uptime (90 days), 99.99% uptime (12 months). History from before down.guide started reading the page is imported from Substack's own archive.

Month

2026-11

1 incident

  1. SubstackPartial outage
    Slow publishing and some posts displaying without content
    lasted 3h 3mSubstack publications, Writer dashboards, Push Notifications
Month

2026-10

2 incidents

  1. SubstackDegraded
    Increased latency on post publishing
    lasted 1h 24mSubstack publications, Writer dashboards
  2. SubstackOperational
    Elevated latencies
    lasted 55mSubstack.com
Month

2026-08

2 incidents

  1. SubstackOperational
    Delays in post delivery stats
    lasted 3h 23mWriter dashboards
  2. SubstackDegraded
    Issues loading Notes
    lasted 32mSubstack.com
Month

2026-07

1 incident

  1. SubstackDegraded
    Issues loading media on Substack
    lasted 5h 54mSubstack.com
Month

2026-06

1 incident

  1. SubstackOperational
    Delays in post delivery
    lasted 52mEmail delivery
Month

2026-04

1 incident

  1. SubstackOperational
    Service degraded due to a provider.
    lasted 1h 36mSubstack publications, Writer dashboards, Email delivery +4
Month

2026-03

1 incident

  1. SubstackOperational
    Issue with reported open rates
    lasted 44d 19hEmail delivery
Month

2026-02

4 incidents

  1. SubstackDegraded
    We're aware of an issue causing delays in publisher stats
    lasted 2h 54mWriter dashboards
  2. SubstackDegraded
    Publisher Stats Loading
    lasted 33mWriter dashboards
  3. SubstackPartial outage
    Substack Availability Issues
    lasted 1h 5mSubstack publications, Writer dashboards, Substack.com
  4. SubstackPartial outage
    Substack Availability Issues
    lasted 1h 21mSubstack publications, Writer dashboards, Substack.com
Month

2026-01

3 incidents

  1. SubstackOperational
    Issues loading Notes
    lasted 15mSubstack.com
  2. SubstackOperational
    Elevated latencies
    lasted 3h 9m
  3. SubstackOperational
    Delays in audio read-aloud processing.
    lasted 12h 19m
Month

2025-12

1 incident

  1. SubstackDegraded
    Substack is experiencing issues
    lasted 42mSubstack.com
Month

2025-11

2 incidents

  1. SubstackDegraded
    Substack is experiencing issues
    lasted 38mSubstack publications, Writer dashboards, Substack.com +1
  2. SubstackOperational
    Push notifications delayed on iOS
    lasted 46mPush Notifications
Month

2025-10

1 incident

  1. SubstackPartial outage
    Post emails delayed
    lasted 11h 11mEmail delivery
More

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