The Technical Architecture: Elegant Simplicity

This workflow combines four powerful components in n8n:

1. Schedule Trigger: Automatically runs at your defined intervals (every minute, 5 minutes, etc.)
2. HTTP Request: Sends a request to your specified service URL to verify its availability
3. Conditional Logic: Evaluates the HTTP status code - specifically identifying non-200 responses that indicate problems
4. Twilio SMS: When issues are detected, instantly delivers customized text messages to designated team members

The entire solution operates autonomously once configured, with no dashboard to monitor or manual intervention required. Its lightweight design means minimal resource consumption while providing enterprise-grade monitoring capabilities.