Checkmate

An open-source infrastructure monitoring platform that provides uptime, page speed, hardware, Docker, and incident alerts in a self-hosted dashboard. It solves the problem of expensive per-host pricing and data leaving the infrastructure. It targets developers, ops, and IT teams in small to mid-sized companies who want control and transparency. It is positioned as a middle path between costly enterprise tools and limited free tools, with no per-monitor pricing and no data leaving the perimeter.

Key features

• Global uptime monitoring from six continents
• HTTP, ping, TCP, gRPC, WebSocket, DNS monitoring
• Page speed tracking with Lighthouse scores
• Infrastructure monitoring for CPU, memory, disk
• Docker container health and resource monitoring
• Game server monitoring for 100+ game types
• SSL certificate expiry detection
• Multi-channel alerts via email, Slack, Discord
• Public status pages with custom branding
• Team collaboration with role-based access control
• Response time tracking with historical charts
• Flexible polling intervals and smart throttling