Monitor website uptime and content changes with HTTP checks and Slack
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 6 nodes and runs on a schedule (every 30 minutes). Along the way it connects Slack.
How it runs
Trigger: On a schedule (every 30 minutes).
- Define URLs to Monitor (Code): runs custom JavaScript code
- Fetch Page (HTTP Request): calls an HTTP API (GET)
- Detect Status & Content Change (Code): runs custom JavaScript code
- Anything To Report? (If): checks a condition and branches into true / false
- Post Alert (Slack): post (message)
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (5)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Code
n8n-nodes-base.code - HTTP Request
n8n-nodes-base.httpRequest - If
n8n-nodes-base.if - Slack
n8n-nodes-base.slack
From the author
Quick Overview This workflow runs every 30 minutes to check a list of website URLs, detect downtime or page content changes using HTTP requests and stored workflow state, and post alerts to a Slack channel only when something goes down, changes, or recovers.…