What is Application monitoring?
Application monitoring is the continuous tracking of a live application's health and performance, including errors, response times, resource usage and user-facing failures, with alerts when something goes wrong. It often combines logs, metrics and traces so teams can see not just that a problem exists but where it started.
Why it matters for your business
Monitoring lets your team spot and fix issues before customers report them, protects revenue during incidents and gives real data for planning performance improvements.
After a release, monitoring flags that checkout errors have jumped on one payment method, and the on-call engineer rolls back the change within minutes.