Uptime Robot
Monitoring · Free · since 2010
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Uptime Robot is a simple uptime monitoring service that checks your websites every 5 minutes and alerts you when they go down. It handles http monitoring, status pages, alerts, and api, and it's best suited for anyone wanting simple, free uptime monitoring. It has been around since 2010, giving it a 16-year head start in building out integrations and refining the product.
The free plan is free for 50 monitors — enough for most people to evaluate whether it fits.
pros
- Includes HTTP Monitoring as a core feature, purpose-built for monitoring workflows
- Includes Status Pages as a core feature, purpose-built for monitoring workflows
- Free for 50 monitors — generous enough for most small teams to get real work done
- Established product with 16+ years on the market and a mature ecosystem
cons
- Free plan exists but key features are locked behind the paid upgrade
- Developer-oriented tooling may not suit non-technical team members
- Ecosystem of third-party integrations is smaller than the market leaders in monitoring
- Mobile experience lags behind the desktop version in features and polish
top Uptime Robot alternatives
Datadog Cloud-scale monitoring and observability platform for infrastructure, applications, and logs. Free 
Sentry Application monitoring platform focused on error tracking, performance monitoring, and session replay. Free 
BetterStack Uptime monitoring, log management, and incident management platform with a clean, modern interface. Free 
Grafana Open-source observability platform for metrics visualization, dashboards, and alerting from any data source. Free 
New Relic Full-stack observability platform with APM, infrastructure, logs, and browser monitoring. Free Uptime Robot compared
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