substack.com is UP as of 14:05 UTC, 12 Sep 2026 (checked from Singapore; also up from Boston). 0 user reports in the last hour.
✅ substack.com is up
It's responding for us right now. If it isn't loading for you, the problem is most likely on your end.
- Status
- HTTP 200
- Response time
- 655 ms
- IP address
- 172.64.150.56
- Protocol
- HTTPS
- Server
- cloudflare
- TLS cert
- Checked
- Sat, 12 Sep 2026 14:05:10 GMT
Checked from: ✅ Singapore: up · 655 ms✅ Boston: up · 594 ms
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Are people reporting problems with Substack?
No problem reports in the last hour
Substack status history live
Latest 655 ms · peak 1275 ms
- Uptime (24h)
- 100%
- Uptime (7d)
- 100%
- Last down
- Not in the last 7 days
- Checks (24h)
- 288
Each bar is one check (~5 min apart); height is response time, red marks a failed check.
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Is Substack down for everyone or just me?
We checked substack.com directly from our server and it responded successfully. That means the site itself is up. If it isn't loading for you, the cause is most likely local — your internet connection, DNS settings, browser cache, or a network or firewall block.
What to try if it still won’t load
- Reload the page, or open it in a private/incognito window.
- Clear your browser cache or try a different browser or device.
- Switch networks (e.g. mobile data) to rule out your connection or DNS.
- Flush your DNS cache or try a public resolver (1.1.1.1 / 8.8.8.8).