I've been building web apps for 6 years and the same pattern keeps repeating: cron job silently fails → user reports it → I check logs → job hasn't run in days.
The fix exists — heartbeat monitoring — but it's spread across 4 tools that each cost as much as a full SaaS subscription. Cronitor for cron, Hookdeck for webhooks, MXToolbox for email, BetterStack for uptime. Most small teams skip half of them and find out the hard way.
Runmon is one place for all of it.
Starting with cron job monitoring because it's the most painful and most ignored. Setup is 60 seconds — you get a ping URL, append && curl https://runmon.dev/{id}/ping to your existing cron, done. No agent, no config files, no infra changes.
Webhook inspector, email deliverability, and uptime monitoring are next.
Waitlist at runmon.dev — would genuinely love to know which of these has burned you before.