The 10-user illusion
Your side project with 10 users (mostly your friends) runs clean. No errors, fast responses, everyone's happy. Then you get real traffic and everything falls apart. This isn't bad luck — it's physics.
What breaks at 100 users
Database queries that were fast become slow as data grows. Race conditions appear from concurrent users. Cache invalidation issues emerge. The error types you see at 100 users almost never appear in testing.
What breaks at 1,000 users
Memory leaks that were negligible become crashes. Third-party API rate limits get hit. Edge cases in your data model surface. Browsers and devices you never tested on start sending error reports.
The production readiness threshold
Before seeking real users, establish: error monitoring (so you see what breaks), performance monitoring (so you see what slows down), and basic alerting (so you know when to act).
How monitoring helps you scale
ProdFix grows with you. Free tier for side projects, affordable plans as you scale. More importantly, the data it collects shows you exactly which parts of your app need optimization — you fix the right things, not the wrong things.
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.