CheckCle

CheckCle is an open-source monitoring platform that provides real-time uptime, service and infrastructure monitoring, incident tracking, and alerts for full‑stack systems and applications. It combines a modern web UI with an embedded backend to offer status pages, distributed checks, and reports for operators and DevOps teams. (docs.checkcle.io)

Key Features

• Uptime and service monitoring for HTTP, DNS, Ping, and TCP-based services (API/SMTP/FTP etc.).
• Distributed regional checks and incident history (UP/DOWN/WARNING/PAUSE) with maintenance scheduling.
• SSL and domain monitoring (issuer, expiration date, days left, notifications).
• Infrastructure server monitoring (agent-based metrics for CPU, RAM, disk, network) with one-line agent install; Windows support listed as beta.
• Operational/public status pages, reports and analytics, and a web-based admin panel with user management, data retention and theme/language settings.
• Built for containerized deployment: Docker Compose and single-container run commands provided for quick installs. (github.com)

Use Cases

• DevOps and SRE teams needing an on‑premises/open‑source solution for uptime and incident tracking across services and regions.
• Small to medium organizations wanting self-hosted status pages and SSL/expiration monitoring without third‑party SaaS.
• Community projects, labs, or training environments that require a simple deployable monitoring stack with a web UI. (docs.checkcle.io)

Limitations and Considerations

• CheckCle uses an embedded PocketBase/SQLite datastore for persistence; this design simplifies deployment but can limit horizontal scaling and very high‑volume telemetry scenarios — plan backups and host volume persistence accordingly.
• Windows server/agent support is marked as beta in the documentation and may lack feature parity or production stability compared to Linux agents.
• Built‑in notification integrations are focused on email, Telegram, Discord and Slack; larger ecosystems or enterprise integrations may require custom work. (docs.checkcle.io)

In summary, CheckCle is a focused open‑source monitoring tool designed for teams that prefer a self‑hosted, container-friendly system with a React frontend and Go/embedded datastore backend. It is well suited for uptime, SSL, and server metric monitoring, with tradeoffs around embedded datastore scale and Windows agent maturity. (docs.checkcle.io)