Cronaut

Cronaut is a monitoring platform designed to consolidate uptime monitoring, cron job checks, and automated public status pages into a single tool. It is aimed at indie hackers, micro-SaaS founders, and small teams who want to monitor their websites, scheduled jobs, and SSL certificates without juggling multiple services. Cronaut addresses the challenge of fragmented monitoring by providing one unified engine for all checks and automating incident management and status updates.

The platform supports active uptime monitoring through HTTP, keyword, and SSL checks, utilizing a scalable probe fleet to track latency and performance. For cron and heartbeat checks, users can configure pings when jobs start, succeed, or fail, allowing Cronaut to detect both failed and missed scheduled tasks. SSL certificate monitoring is also included, with alerts for impending expirations. When a check fails, Cronaut automatically opens an incident on a public, SEO-friendly status page, which is cacheable behind a CDN and updates live over Server-Sent Events (SSE). Incidents close themselves upon recovery, eliminating the need for manual status updates. The alerting system integrates with email, Slack, Discord, and webhooks, and includes flap detection to prevent unnecessary notifications from transient issues.

Users add monitors by specifying URLs, cron schedules, or TLS endpoints, centralizing all monitoring needs within one dashboard. The status page reflects real-time changes and is built from the platform’s incident and state change logs. Cronaut’s pricing model features a free tier for side projects, supporting up to 10 monitors, 3-minute check intervals, a single status page, and 30-day history. Paid plans increase monitor limits, reduce check intervals, offer unlimited or custom status pages, extend history retention, and add team features and priority support. All plans allow starting without a credit card and can be canceled at any time.

By combining uptime, cron, and SSL monitoring with automated incident management and live status pages, Cronaut streamlines infrastructure monitoring for small-scale developers and teams seeking simplicity and affordability.