How It Works
Slack website alerts deliver real-time notifications to your team channel when monitored pages change visually. GoScreenAPI integrates with Slack's Block Kit API to send rich, structured messages that include the change percentage, a thumbnail of the diff overlay, timestamps for both captures, and a direct link to the full comparison view. Your team sees exactly what changed without leaving Slack.
Configuration takes under two minutes. Connect your Slack workspace through OAuth, select the channel where alerts should be delivered, and assign it to one or more monitors. Each monitor can route to a different channel — send production alerts to #ops, staging changes to #dev, and competitor updates to #marketing. When a visual change exceeds the monitor's threshold, the Block Kit message arrives within seconds.
Key Features
- Rich Block Kit messages — Alerts include structured sections with the monitor name, URL, change percentage, capture timestamps, and action buttons linking to the full diff view.
- Diff image thumbnails — Each notification embeds a preview of the highlighted diff overlay so your team can assess severity at a glance without clicking through.
- Per-monitor channel routing — Route different monitors to different Slack channels. Keep alerts organized by environment, team, or priority level.
- Threshold-based delivery — Only receive Slack alerts when changes exceed your configured sensitivity. Minor rendering variations are filtered out automatically.
- Thread-based history — Consecutive alerts for the same monitor are threaded together, keeping your channel clean while preserving the full change timeline.
Setting Up Slack Integration
Navigate to your GoScreenAPI notification settings and click "Connect Slack." Authorize the app for your workspace and select a default channel. You can override the channel on a per-monitor basis from the monitor's alert configuration panel. Test the connection by triggering a manual check — the alert arrives in your chosen channel immediately.
For teams already using GoScreenAPI's built-in Slack notification system, the website alerts feature extends that same integration with enhanced formatting and per-monitor routing. There is no additional setup required if your workspace is already connected.
Who Is This For
Slack website alerts are built for teams that live in Slack and need immediate visibility into website changes. DevOps teams receive deployment verification alerts in their operations channel. Marketing teams get notified when campaign pages update. Agency teams monitor multiple client sites with alerts routed to dedicated client channels.
Teams that need monitoring without any cost can start with the free website change monitor tier and upgrade to unlock Slack integration when their workflow demands real-time team notifications. For programmatic control over alert routing and delivery, the website changes API provides full access to notification configuration, allowing you to manage Slack channels and thresholds through code rather than the dashboard.
Related Features
Explore more Visual Monitoring capabilities