- Level
- confirmed
- Worst impact
- Degraded
- Components
- Substack publications, Writer dashboards, Email delivery, Substack.com, Custom domains
- Down Index
- 34of 100
What to do
Check whether you use Substack Substack publications, Writer dashboards, Email delivery, Substack.com and 1 more. Check your stack
Drop a package.json, lockfile, Terraform or a list of domains at down.guide to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 3h 47m it lasted.
Anything that failed between 2025-09-15 15:24 UTC and 2025-09-15 19:12 UTC may need a replay.Subscribe to Substack's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=substack works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Substack 10
- investigating
We are currently investigating reports of increased latency and slow response times across Substack.
provider
- investigating
We are continuing to investigate increased latency and error rates across Substack.
provider
- identified
We have identified an issue and are seeing normal performance across all systems.
provider
- identified
We are continuing to investigate increased latency and error rates across Substack.
provider
- identified
We are working to resolve the remaining performance issues across Substack and expect to see recovery shortly.
provider
- monitoring
We are seeing recovery of performance across Substack and are monitoring the issue.
provider
- monitoring
As part of the earlier incident, we are noting delays in analytics updating and post email delivery. We are working to resolve the issue.
provider
- identified
We are seeing recurrence of increased error rates and degraded performance across Substack.
provider
- monitoring
Substack is operating normally and our team is monitoring.
provider
- resolved
This incident has been resolved.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-455fa82a6b
Is Substack still down?
No, this incident was resolved 2025-09-15 19:12 UTC. For Substack's live state, see https://down.guide/providers/substack.
How long did it last?
3h 47m, from 2025-09-15 15:24 UTC to 2025-09-15 19:12 UTC, by the times Substack posted.
What was affected?
Substack named Substack publications, Writer dashboards, Email delivery, Substack.com and 1 more.
What caused it?
Substack hasn't published a root cause. If it does, it shows here.
Where does this come from?
Substack's official status page, https://substack.statuspage.io, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.