Features

HTTP, keyword, API, SSL, ping, port, cron heartbeat and domain-expiry monitoring, multi-region confirmation, status pages and alerting — in one binary.

Checks

• HTTP and keyword checks — a 200 response containing "Database error" is still an outage.
• API checks — assert on status, latency, headers and JSON body.
• SSL certificate expiry.
• Ping and TCP port checks.
• Cron heartbeats — alert when a job stops running.
• Domain expiry.

Alerting

Email, webhooks and chat. Before anyone is paged, a second probe location confirms the failure, so a flaky network path between one region and your server does not wake your on-call.

Status pages

Every account gets one, on your own domain if you want it. See status pages.

Running it

One static binary, no runtime dependencies. See self-hosted.