Launch day is a stress test
Product Hunt sends traffic spikes unlike anything you've seen in dev. 200+ people hitting your app simultaneously, from different countries, on different browsers, doing unpredictable things. Every weakness gets exposed.
1. Error rate (errors per minute)
Your baseline error rate in dev is near zero. On launch day, expect some errors. The question is: are new error types appearing? Is the rate climbing? Set an alert for any error type that hits 10+ occurrences in 10 minutes.
2. Signup flow errors
The most critical flow on launch day is signup. Any error here means lost conversions. Watch ProdFix for errors tagged to your signup route specifically. Even a 2% signup error rate on 200 visitors is 4 lost signups.
3. Page load time (LCP)
Under load, your server will be slower. Watch your LCP metric — if it climbs above 4s, users are abandoning before the page loads. This shows up in Core Web Vitals in your performance dashboard.
4. JavaScript errors on the landing page
Visitors who never make it to signup because of a JS error on the landing page are invisible losses. Monitor specifically for errors on your / route.
5. Payment errors
If anyone tries to upgrade on launch day and hits a payment error, that's a hot lead lost. Payment errors should have their own alert — you want to know about these immediately.
The launch day setup
Install ProdFix before launch day. Configure alerts. Keep the dashboard open in a tab. When something breaks (and it will), you'll know immediately and can fix it in minutes rather than finding out from a tweet.
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.