Automated SSL Certificate Expiry Notifier
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Never let an SSL certificate expire unexpectedly again. This n8n workflow automates the process of monitoring your website SSL certificates, checking their validity daily, and proactively notifying you via email when an expiry date is nearing, preventing costly downtime and security risks.
About This Workflow
Keep your websites secure and accessible with this powerful n8n workflow for automated SSL certificate monitoring. It starts by fetching a list of URLs from a designated Google Sheet, then uses an external API (ssl-checker.io) to perform a real-time SSL certificate check for each. The workflow automatically updates the Google Sheet with the latest certificate details, including validity dates and days remaining until expiry. Crucially, it includes a conditional alert system that sends a detailed HTML email notification to your team if any certificate is within a configurable number of days from its expiry. This ensures you always have ample time to renew certificates, maintaining continuous service and user trust.
Key Features
- Automated SSL Monitoring: Regularly checks the SSL certificate status for a list of URLs without manual intervention.
- Google Sheets Integration: Easily manage and update your list of monitored URLs and centralize SSL status data in Google Sheets.
- Proactive Email Alerts: Receive timely email notifications with specific site details when an SSL certificate is approaching its expiry.
- Customizable Expiry Threshold: Adjust the warning period (e.g., 7 days) to suit your operational needs for certificate renewal.
- Detailed Status Logging: Automatically updates your Google Sheet with certificate validity dates and remaining days for a clear overview.
How To Use
- Configure Google Sheets: Set up your Google Sheets credentials in n8n and create a new spreadsheet with at least a 'URL' column for the websites you want to monitor.
- Update Sheet Node URLs: In both the 'Fetch URLs' and 'URLs to Monitor' nodes, update the 'Sheet Name' and 'Document ID' parameters with the URL of your Google Sheet.
- Adjust Expiry Threshold: In the 'Expiry Alert' (If) node, modify the
rightValue(default7) to set your desired number of days before expiry for an alert to be triggered. - Configure Email Notifications: In the 'Send Email' node, specify the recipient email address(es) and ensure your email service credentials are set up correctly.
- Activate & Schedule: Activate the workflow and connect it to a 'Cron' trigger node (not included in the snippet) to schedule automatic checks at your preferred interval (e.g., daily or weekly).
Apps Used
Workflow JSON
{
"id": "fb438693-6323-4c22-b4f3-362df59c7000",
"name": "Automated SSL Certificate Expiry Notifier",
"nodes": 6,
"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.
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ID: fb438693-6323...
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