Workflow

Track Changes in Website

Compare the versions of a website and send an email if there is a difference.

React Flow

Needle Team

Last updated

October 1, 2025

Connectors used

Key Takeaways

Automated website monitoring - checks target URLs on a daily or weekly schedule
Version comparison - compares current page content against previously stored snapshots
AI-powered change detection - identifies and categorizes additions, deletions, and modifications
Significance classification - sorts changes into critical, important, and minor categories
Slack alerts - notifies your team with AI-generated summaries of what changed and why it matters

What This Workflow Does

This Needle workflow compares current website content against stored snapshots, detects changes, and alerts your team to significant updates. It runs on a configurable schedule and uses AI to analyze what changed and its potential implications.

Use cases:

Tracking competitor pricing page changes
Monitoring feature page updates across your market
Watching job posting pages for competitor hiring signals
Detecting content or messaging shifts on key pages

How It Works

Step	What Happens
1. Scheduled trigger	Runs on your configured schedule (e.g., daily at 9 AM)
2. URL retrieval	Loads the list of monitored URLs
3. Content fetch	Fetches current page content for each URL
4. Snapshot lookup	Retrieves the last stored snapshot from the database
5. AI comparison	Compares the two versions and detects changes
6. Change categorization	Classifies each change by type (pricing, features, content, design, job postings)
7. Significance rating	Rates changes as critical, important, or minor
8. Analysis generation	Produces before/after comparison, summary, and potential business implications
9. Slack alert	Sends change notifications to your team channel
10. Storage	Saves current version as the new snapshot for future comparisons

Change Categories

Change Type	What It Covers
Pricing changes	New plans, price increases or decreases
Feature updates	New features added or removed
Content changes	Major rewrites, new sections
Design updates	Layout or branding changes
Job postings	New roles added (may indicate growth or expansion)

Significance Levels

Level	Meaning
Critical	Pricing changes, major feature launches
Important	Significant content updates
Minor	Small text edits, formatting changes

Setup Instructions

Prepare a list of target URLs to monitor (e.g., competitor pricing pages, feature pages, about pages)
Set up storage for snapshots (database or Google Sheets)
Import the workflow template in Needle
Configure the target URL list in the workflow
Connect a Slack channel for alerts (e.g., #competitor-intel)
Set the schedule in the trigger node (e.g., daily at 9 AM)

Customization

What You Can Change	How
Monitored URLs	Add or remove URLs from the target list
Check frequency	Edit the cron expression in the trigger node (daily, weekly, etc.)
Change categories	Modify the AI prompt to detect additional or different change types
Significance thresholds	Adjust the criteria for critical, important, and minor classifications
Alert channel	Change the Slack channel in the notification node
Storage backend	Switch between database and Google Sheets for snapshot storage

FAQ

Q: What types of pages work best for monitoring? A: Pricing pages, feature pages, job postings, and about pages are commonly tracked.

Q: How are changes detected? A: The workflow fetches the current page content and compares it against the last stored snapshot using AI analysis.

Q: Will I get alerted for every small text edit? A: Changes are classified by significance. You can configure which levels trigger alerts.

Q: Can I monitor my own website too? A: Yes. You can add any URL to the monitoring list, including your own pages.

Q: Where are snapshots stored? A: Snapshots can be stored in a database or Google Sheets, depending on your configuration.

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