Is Substack down right now?
No one has reported a problem in the last hour.
Reports, last 24 hours
0 reports · baseline about 3 per hour| Problem reported | No reports in the last 24 hours. |
Get notified
One email when substack.com goes down and one when it recovers. No account needed; unsubscribe from any email.
What we checked 00:04:12 UTC
| Layer | Result | Outcome |
|---|---|---|
| DNS | substack.com resolves to 172.64.150.56 | pass |
| TLS | Certificate from Google Trust Services, expires 2026-12-18 | pass |
| HTTP, Phoenix | HTTP 200 in 0.68 s 1 s ago | pass |
| HTTP, United States | HTTP 403 in 0.05 s · Reachable; answered HTTP 403 3 h ago | pass |
| Content | Page title: “Substack” · changed in the last 48 h | – |
| Reputation | Run the trust check | – |
Outage history, 90 days
No incidents recorded in the last 90 days.
Common questions
Is Substack down for everyone or just me?
Compare the test from your browser above with our server checks. If our servers reach substack.com and your browser cannot, the problem is on your connection, DNS or network. If both fail, the site is down.
How do you know if Substack is down?
We request the homepage from 8 locations, check DNS, the TLS certificate and the HTTP response, and compare the page content with what we saw before. We also read the service's official status feed where one exists and count visitor reports against the usual rate for the hour.
What can I do while it is down?
Subscribe to the alert on this page and we will email you when it recovers. Clearing your DNS cache or switching networks only helps when our servers can reach the site and your browser cannot.