Automated Webpage Change Detection and Notification
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Effortlessly track critical changes on any webpage with this automated workflow. Get instant notifications and a historical log in Google Sheets whenever content updates, ensuring you never miss an important modification.
About This Workflow
Stay informed about vital website updates without manual checks. This n8n workflow provides a robust solution for monitoring specific web content, using hashing to precisely identify changes. Ideal for tracking policy updates, competitor pricing, or critical announcements, it automates the process of fetching web data, detecting new versions, and notifying stakeholders. All detected changes are meticulously logged in a Google Sheet, offering a clear, auditable history. Focus on your core tasks while this workflow keeps a vigilant eye on the web for you.
Key Features
- Scheduled Webpage Monitoring: Automatically fetches content from a specified URL at regular intervals.
- Granular Content Extraction: Targets and extracts only relevant sections of a webpage using CSS selectors, ignoring irrelevant noise.
- Hash-Based Change Detection: Utilizes cryptographic hashing to accurately identify even subtle content modifications.
- Real-time Email Notifications: Sends immediate alerts via Gmail to designated recipients upon detecting a change.
- Comprehensive Change Logging: Records all detected changes, including the website URL, new hash, and date, into a Google Sheet for historical tracking and auditing.
How To Use
- Configure the Schedule Trigger: Adjust the "Schedule Trigger" node to define how often you want the webpage to be checked (e.g., hourly, daily).
- Define Target URL: In the "Variables" node, update the
urlassignment to the specific website address you wish to monitor. - Refine Content Extraction: In the "Extract Contents" node, modify the
cssSelectorparameter (currently.ct07) to precisely target the HTML element containing the content you want to monitor. - Set Up Google Sheets Logging:
- Ensure the "Log Record" node is connected to your Google Sheets account.
- Update the
documentIdandsheetNameparameters to point to your desired Google Sheet where changes will be logged.
- Configure Email Notifications:
- Connect the "Notify of Change" node to your Gmail account.
- Update the
sendToparameter with the email address(es) that should receive alerts. - Customize the
subjectandmessagefields to tailor your notification content.
Apps Used
Workflow JSON
{
"id": "f0df931b-525c-486b-b72f-32466bed3c8e",
"name": "Automated Webpage Change Detection and Notification",
"nodes": 29,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: f0df931b-525c...
About the Author
Crypto_Watcher
Web3 Developer
Automated trading bots and blockchain monitoring workflows.
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