OnlineOrNot
Uptime monitoring and status pages for software teams
OnlineOrNot is an uptime monitoring service that watches websites, APIs, cron jobs, and heartbeats, alerting teams when production systems fail. It confirms failures before sending notifications to reduce false positives, and provides status pages for communicating incidents and maintenance windows to customers.
Features include website checks with configurable HTTP methods, headers, and bodies; API monitoring with assertions on status codes, response text, and JSON values; Playwright browser checks running in Chrome; cron job monitoring via check-in URLs; and heartbeat monitoring. Alerts route to email, SMS, Slack, Discord, Telegram, PagerDuty, Opsgenie, incident.io, Grafana OnCall, Microsoft Teams, and webhooks. An MCP integration connects coding agents to checks and status pages, alongside an OpenAPI-backed HTTP API and a CLI. Status pages support subscribers, custom domains, private pages, and uptime history.
OnlineOrNot is aimed at developers, agencies, founders, and software teams. It offers a free Hobby plan for personal projects, a Pro plan for production applications with unlimited users and usage-based add-ons for monitors and browser check runs, and a custom Enterprise edition with dedicated support and an SLA. A 14-day trial is available.
12 alternatives to OnlineOrNot
Ranked by how well each tool replaces OnlineOrNot: shared features, audience, price and popularity.
- 70 out of 100 matchContact sales
Cron job monitoring that alerts you when scheduled tasks don't run on time
Starts cheaper and is open source.
Free planOpen source65 out of 100 match$5/mo- 63 out of 100 match$9/mo
Free and open source status page and uptime monitoring.
Is open source.
Free planOpen source63 out of 100 match$30/moWebsite and uptime monitoring from 300+ locations with phone call, SMS and Slack alerts.
Starts cheaper.
Free plan63 out of 100 match$9/mo- 63 out of 100 match$5/mo
Uptime monitoring with alerts sent to your phone when a website or app goes down.
Starts cheaper.
63 out of 100 match$7/mo- 63 out of 100 match$9.95/mo
Website health monitoring covering uptime, SSL, DNS, cron jobs, broken links, and more.
Free plan62 out of 100 match$16.45/mo