Frontend monitoring is not a luxury. It is the difference between knowing your application works and guessing it does. Your backend can return perfect 200 responses while users on mid-range phones stare at frozen screens, broken forms, and silent failures that never generate a support ticket.

Source: [Dev.to](https://dev.to/madifrontend/frontend-monitoring-the-complete-guide-to-observability-that-actually-works-57ng)

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