Substack is UP
Newsletter publishing platform
100%
30-Day Uptime
249ms
Response Time
143
Total Checks
Mar 31, 2026, 11:22 AM
Last Checked
About Substack
- Website
- https://substack.com
- Category
- Social Media
- Monitored From
- EU (Helsinki, Frankfurt, Amsterdam)
- Check Interval
- Every 5 minutes
Frequently Asked Questions
Is Substack down right now?
Substack is currently up and running. Our last check from EU servers showed a response time of 249ms.
What is Substack's uptime?
Substack has a 30-day uptime of 100%, based on 143 checks from Vartio's EU monitoring servers.
How do I check if Substack is down?
Vartio monitors Substack every 5 minutes from multiple EU servers. This page shows the current status, response time, and 30-day uptime history. You can also monitor your own services for free.
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