+ Notifier.so

Slack Integration

Get instant alerts in Slack when your website goes down, and know the moment it comes back up.

What the Integration Does

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.

Downtime Alerts

When a monitor goes down, you receive a message like: "Monitor Down: example.com is currently DOWN"

Recovery Alerts

When it comes back up: "Monitor Back Up: example.com is now UP (Downtime: 3m 42s)"

Features

  • Channel alerts : Send downtime notifications to any public or private Slack channel.
  • Direct messages : Or send alerts as DMs to specific team members.
  • Per-monitor routing : Route different monitors to different channels. Send critical production alerts to #ops and staging alerts to #dev.
  • Automatic channel sync : Your Slack channels are automatically discovered and kept in sync.
  • Works alongside other alerts : Use Slack together with email, SMS, and phone call alerts.

How to Connect Slack

  1. 1

    Sign up or log in to Notifier.so

    Create a free account at notifier.so. No credit card required.

  2. 2

    Go to Integrations

    In your Notifier dashboard, navigate to Monitoring → Integrations.

  3. 3

    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.

  4. 4

    Choose a channel for each monitor

    Once connected, edit any monitor and select which Slack channel (or DM) should receive its alerts.

Permissions We Request

When you connect Slack, we request only the permissions we need:

  • channels:read and groups:read : To list your public and private channels so you can choose where to send alerts.
  • chat:write and chat:write.public : To send downtime and recovery alert messages to your chosen channels or DMs.

We do not read your messages, access your files, or modify your workspace in any way.

Get Started Free

Free plan includes 10 monitors with Slack alerts.