Why monitoring before launch (not after)

Most founders add monitoring after something breaks. By then, you've already lost users who hit the bug silently. Monitoring is infrastructure — it needs to be in place before users arrive.

The 10-item checklist

  1. Error monitoring installed — captures JS exceptions with stack traces
  2. Unhandled promise rejections tracked — these are the silent killers
  3. API error rates visible — know when your backend is returning 5xx
  4. Core Web Vitals being measured — LCP, CLS, INP for real users
  5. New error type alert — get notified when a new class of error appears
  6. Error rate spike alert — get notified when error rate doubles
  7. CSP violations monitored — catch script injection attempts
  8. User session context captured — know what user was doing when it crashed
  9. Performance budget set — alert when LCP exceeds 2.5s
  10. Monitoring on all environments — staging and prod, not just prod

The 2-minute setup

ProdFix covers all 10 items with a single npm install. Add the script, set your API key, and you're monitoring within minutes.

What monitoring tells you that users don't

Most users don't report bugs — they just leave. Monitoring is the difference between knowing you have a bug and finding out via churn data 30 days later.

Stop flying blind in production.

ProdFix gives you error monitoring, performance tracking, security alerts, and AI-powered fixes — built for solo founders and vibe coders. One SDK, 2-minute setup.

Free tier · 3 projects · MCP for Cursor + Claude Code