Monitor SSL certificate expiry with Google Sheets and email alerts

🔒 SSL Certificate Monitoring & Expiry Alert with Spreadsheet [FREE APIs]

✅ What This Workflow Does

This n8n template automatically monitors SSL certificates of websites listed in a Google Sheet and sends email alerts if any are expiring within 14 days. It helps ensure you avoid downtime, security issues, and trust warnings due to expired certificates.

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🧩 Key Features

- 📅 Weekly Automation: Runs every Monday at 7:00 AM (configurable). - 📄 Google Sheets Integration: Fetches and updates data in a spreadsheet. - 🔍 SSL Check via API: Uses [ssl-checker.io](https://ssl-checker.io) to get certificate details. - ⚠️ SSL Expiry Filter: Identifies certificates expiring within 14 days. - 📧 Email Alerts: Sends notifications for certificates close to expiration.

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📂 Input Spreadsheet Format