What makes a bug "silent"

A silent bug either swallows its error (catch block that does nothing), fails in a way the user attributes to user error, or degrades experience slowly without a hard failure. These are the most dangerous.

The 5 MRR killers

  1. Export feature that fails for large datasets — user with the most data (your best customer) can't export. They cancel.
  2. Date calculation bugs for users in certain timezones — silent wrong data. Users think your product is unreliable.
  3. Pagination that stops working after page 3 — users with many records can't access them. They move to a competitor.
  4. File upload that times out for large files — user uploads their 50MB file, it fails silently. No error shown. They try three times then give up.
  5. Email notifications that stop delivering — users don't realize they've missed notifications until they miss something important. Then they blame the product.

How ProdFix finds these

By capturing all JavaScript exceptions including caught ones, all API failures, and network errors, ProdFix surfaces bugs that your code "handles" but handles badly. The error dashboard shows you errors grouped by type, even if each individual occurrence was swallowed.

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.

Start free — no credit card → Read the docs
Free tier · 3 projects · MCP for Cursor + Claude Code