Weekly Website Link Checker with Slack Alerts for Broken URLs

Description

Description
Automates weekly checks for broken links on a website.
Scans the site using HTTP requests and filters broken links.
Sends Slack alerts for detected broken URLs and creates a list for tracking.

Essential Information
Runs weekly to monitor website link integrity.
Identifies broken links and notifies the team via Slack.
Generates a list of broken links for further action.

System Architecture
Link Checking Pipeline**:
Weekly Cron Trigger: Schedules the workflow to run weekly.
Scan Blog with HTTP: Performs HTTP GET requests to check website links.
Alert and Tracking Flow**:
Filter Broken Links: Identifies and separates broken links.
Send Slack Alert: Notifies the team via Slack about broken URLs.
Create Broken Links List: Compiles a list of broken links.
Non-Critical Handling**:
No Action for Valid Links: Skips valid links with no further action.

Implementation Guide
Import the workflow JSON into n8n.
Configure the HTTP node with the target website URL (e.g., https://yourblog.com).
Set up Slack credentials for alerts.
Test the workflow with a sample website scan.
Monitor link checking accuracy and adjust HTTP settings if needed.

Technical Dependencies
HTTP request capability for link scanning.
Slack API for team notifications.
n8n for workflow automation and scheduling.

Database & Sheet Structure
No specific database or sheet required; relies on HTTP response data.
Example payload: {"url": "https://yourblog.com/broken", "status": 404, "time": "2025-07-29T20:21:00Z"}

Customization Possibilities
Adjust the Cron trigger to run at a different frequency (e.g., daily).
Customize HTTP node to scan specific pages or domains.
Modify Slack alert messages in the Send Slack Alert node.
Enhance the Create Broken Links List node to save results to a Google Sheet or Notion.
Add email notifications for additional alert channels.