Gatus

Gatus is a powerful monitoring solution that helps you keep track of your infrastructure's health in real-time. The platform offers comprehensive monitoring capabilities for HTTP, GraphQL, DNS, ICMP/PING, TCP, and certificate expiration checks.

Key features include:

• Highly customizable monitoring with conditions for response time, body content, and IP addresses
• Extensive alerting system supporting Email, Slack, PagerDuty, Teams, Twilio, Discord, and more
• Developer-focused approach with detailed insights and automated user acceptance testing
• Real-time status updates that automatically reflect your services' current state
• Customer-centric design providing clear, accurate information about ongoing issues

The platform stands out by being completely open source, allowing for community contributions and custom feature development. Unlike traditional status pages that only show historical uptime, Gatus focuses on providing immediate, actionable information about current service status.