SSL Expiry Monitor: Seamless n8n Workflow Automation

Never let an expired SSL certificate catch you off guard again. This comprehensive n8n workflow automatically monitors your domains' SSL certificates daily, sending proactive alerts and creating actionable tickets when certificates are approaching expiration or have already expired.

What This Workflow Does

Running every morning at 8AM, this automation streamlines SSL certificate monitoring across your entire domain portfolio:

• Reads your domain list from a Google Sheets spreadsheet
• Checks SSL certificate status for each domain automatically
• Filters domains expiring within 30 days or already expired
• Classifies severity levels: expired, critical, warning, and notice
• Sends a consolidated digest message to your Slack channel
• Creates Linear issues (or Jira tickets) for critical and expired domains
• Logs all flagged domains to a dedicated tracking sheet

Perfect Use Cases

This n8n SSL monitoring workflow is ideal for:

• DevOps teams managing multiple client websites and applications
• SaaS operators maintaining uptime across various domains and subdomains
• Digital agencies ensuring client sites remain secure and functional
• IT administrators preventing costly SSL-related outages and security warnings

Technical Details

Built using proven n8n nodes for reliability and easy customization:

• Schedule Trigger: Daily 8AM automated execution
• Google Sheets: Domain list management and logging
• Code Node: SSL certificate validation logic
• Slack Integration: Team notification delivery
• Linear API: Automated issue creation for urgent cases

Quick Setup

Get started in just 8-12 minutes with three simple credential connections: Google Sheets, Slack, and Linear API. The workflow includes a ready-to-use Google Sheets template, making implementation straightforward for any n8n user.

Transform SSL certificate management from reactive firefighting to proactive monitoring with this battle-tested automation workflow.