About UptimeRobot
UptimeRobot is the most popular free uptime monitoring service, checking websites and APIs every 5 minutes (or 1 minute on paid plans) and alerting you via email, SMS, Slack, or webhooks when they go down. It monitors HTTP, ping, port, and keyword presence — serving over 2 million users worldwide.
Key Features
- HTTP, ping, port, and keyword monitoring
- 5-minute checks (free) or 1-minute (paid)
- 50 monitors on free plan
- Multiple alert channels (email, SMS, Slack, webhooks)
- Public status pages
- Maintenance windows
- Response time monitoring
- SSL certificate monitoring
Pros
- Very generous free tier — 50 monitors at 5-minute intervals
- Simple to set up — running in under a minute
- Public status pages included
- Reliable and well-established (10+ years)
Cons
- Basic compared to full monitoring platforms like Datadog
- No performance or error monitoring — uptime only
- Limited alerting customization on free plan
Integrations
SlackPagerDutyZapierMicrosoft TeamsWebhooksTelegram
Best Use Cases
- Website uptime monitoring
- API health checking
- Public status page for customers
- SSL certificate expiry monitoring
UptimeRobot Alternatives
Looking for alternatives to UptimeRobot? See all UptimeRobot alternatives →
Compare UptimeRobot
Quick Info
- Website
- uptimerobot.com
- Founded
- 2010
- Company
- 10-50
- Pricing
- freemium
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