Checkmate vs UptimeRobot

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.

UptimeRobot monitors websites, servers and other services for availability, with Android and iOS mobile apps. Its Free plan costs nothing, billed monthly, and includes 50 monitors, five-minute checks and basic status pages. Listed monitor types include HTTP, port, ping, keyword, API, UDP, DNS, SSL and domain monitoring. Paid plans can check every minute; the Solo plan is listed at $9 a month when billed annually, with a 60-second interval and 10 monitors. Other plans list intervals as short as 15 seconds. Alert channels include email, SMS, voice calls, mobile push, collaboration services and webhooks. The service also offers branded status pages with incident and maintenance updates, and role-based access for teams. UptimeRobot lists integration with more than 20 services, while the free plan includes five integrations. Free registration does not require a credit card. Annual billing is stated to save about 15%, and new subscriptions and upgrades have a 14-day money-back guarantee. The company is headquartered in Bratislava, Slovakia.