Get instant alerts in Slack when your website goes down, and know the moment it comes back up.
Notifier.so monitors your websites and APIs around the clock. When we detect downtime, we send an alert directly to your Slack workspace so your team can respond immediately.
When a monitor goes down, you receive a message like: "Monitor Down: example.com is currently DOWN"
When it comes back up: "Monitor Back Up: example.com is now UP (Downtime: 3m 42s)"
Sign up or log in to Notifier.so
Create a free account at notifier.so. No credit card required.
Go to Integrations
In your Notifier dashboard, navigate to Monitoring → Integrations.
Click "Connect Slack"
You'll be redirected to Slack to authorize Notifier for your workspace. We request only the permissions needed to read your channel list and send alert messages.
Choose a channel for each monitor
Once connected, edit any monitor and select which Slack channel (or DM) should receive its alerts.
When you connect Slack, we request only the permissions we need:
We do not read your messages, access your files, or modify your workspace in any way.
Free plan includes 10 monitors with Slack alerts.