Brown Basilisk
The UptimeRobot alternative built for developers — every monitor type included, edge-powered, zero infrastructure.
Edge-Powered
Runs on Cloudflare Workers globally with no servers to manage.
Anti-Flap Detection
Smart threshold logic prevents false alerts from transient failures.
Alerts Everywhere
Teams, email, Slack, ClickUp & Jira — per monitor.
Slow Response Tracking
Detect and alert on degraded performance before full outages.
Free here. Paywalled everywhere else.
Every monitor type included — SSL certificate, domain-expiry, DNS-change, API (JSON assertions) & heartbeat/dead-man's-switch checks. Plus first-class service groups, multi-user roles & teams, 365-day history with custom ranges, and custom-domain status pages. All free during beta. Most uptime tools charge for these.