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Checkmate

checkmate.so

Free plan WebWindowsmacOSLinuxAPISelf-hosted
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Spec score 8.5 #5 of 37 in DNS Monitoring Software

What it is

Checkmate is a free, open-source, self-hosted dashboard for monitoring infrastructure, service uptime, PageSpeed, and incidents. It checks HTTP, ping, TCP, gRPC, WebSocket, DNS, SSL, and more than 100 game server types. Its Capture agent reports server CPU, memory, disk, temperature, and network metrics, while PageSpeed monitoring tracks Lighthouse scores and Core Web Vitals over time. Public status dashboards can show per-service uptime and incident history with custom branding. Alerts can go to email, Slack, Discord, Telegram, Twilio SMS, Pushover, ntfy, Matrix, Rocket.Chat, PagerDuty, Microsoft Teams, and webhooks. The maker says metrics, logs, incidents, and user accounts remain in the database configured by the operator, with no phone-home or telemetry pipeline. Checkmate is licensed under AGPL-3.0 and can be installed with Docker Compose or Kubernetes/Helm; its image runs on x86, Apple Silicon, and Raspberry Pi. The maker says the API accepts JSON for bulk monitor setup and provides a REST API reference. The free plan includes all features, no monitor limits, self-hosting, and 12 alert channels. There is no one-click migration import or paid support tier.

Spec sheet

Product
Checkmate is an open-source, self-hosted infrastructure monitoring dashboard for uptime, PageSpeed, hardware, Docker, and incident alerts.Read 3 Oct 2026 · checkmate.so
Audience
The maker names homelabs, SaaS founders, agencies, sysadmins and DevOps, e-commerce, and open-source maintainers as users.Read 3 Oct 2026 · checkmate.so
Deployment
The documentation describes Docker Compose installation and lists Kubernetes/Helm deployment; it says the image runs on x86, Apple Silicon, and Raspberry Pi.Read 3 Oct 2026 · checkmate.so
Free plan
YesRead 23 Sep 2026 · checkmate.so
API
The maker says the API accepts JSON for bulk monitor setup and provides a REST API reference.Read 3 Oct 2026 · checkmate.so
Integrations
Alert channels include email, Slack, Discord, Telegram, Twilio SMS, Pushover, ntfy, Matrix, Rocket.Chat, PagerDuty, Microsoft Teams, and webhooks.Read 3 Oct 2026 · checkmate.so
Support
The maker identifies Discord as the fastest help channel and GitHub issues for bugs and feature requests, and says there is no paid support tier.Read 3 Oct 2026 · checkmate.so
License
Checkmate is licensed under AGPL-3.0, and the maker says users can read, fork, and audit its source.Read 3 Oct 2026 · checkmate.so
Founded
2023Read 28 Sep 2026 · checkmate.so
Maker
Checkmate is built by Bluewave Labs with community contributors.Read 3 Oct 2026 · checkmate.so
Availability checks
It monitors HTTP, ping, TCP, gRPC, WebSocket, DNS, SSL, and more than 100 game server types.Read 3 Oct 2026 · checkmate.so
Infrastructure
The Capture agent reports CPU, memory, disk, temperature, and network metrics from servers.Read 3 Oct 2026 · checkmate.so
Limits
The maker says there is no one-click migration import and describes managed cloud as something users give up when choosing Checkmate.Read 3 Oct 2026 · checkmate.so
PageSpeed
PageSpeed monitoring tracks Lighthouse scores and Core Web Vitals over time.Read 3 Oct 2026 · checkmate.so
Security and data
The maker says metrics, logs, incidents, and user accounts stay in the database configured by the operator, with no phone-home or telemetry pipeline.Read 3 Oct 2026 · checkmate.so
Status pages
It provides public status dashboards with per-service uptime, incident history, and custom branding.Read 3 Oct 2026 · checkmate.so

Plans and prices

Free Free All features · no monitor limits · self-hosted · 12 alert channels Read 3 Oct 2026 · checkmate.so

Every Checkmate plan and price →

Strong points and limits

Strong points

  • Checks a broad range of protocols and game servers
  • Tracks server hardware and PageSpeed metrics
  • Public status pages support custom branding
  • Free plan lists no monitor limits
  • Supports Docker Compose and Kubernetes/Helm

Limits

  • No one-click migration import
  • Choosing Checkmate means giving up managed cloud
  • No paid support tier

Who it suits

Checkmate suits homelabs, SaaS founders, agencies, sysadmins and DevOps teams, e-commerce operators, and open-source maintainers who want self-hosted monitoring. It is for operators prepared to manage its deployment and database.

Verdict

Checkmate combines service, infrastructure, PageSpeed, and incident monitoring in a self-hosted package. Its deployment model and lack of one-click migration are key considerations for teams moving to it.

Where Specifiction places it

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