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App monitoring: what to track so you react before users notice

December 31, 2025•6 min read
Author: 7kar7son7 • Developer

Uptime, latency, errors, queues, DB – a minimum observability stack.

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TL;DR

  • application monitoring metrics
  • For web/mobile apps and sites with forms and payments.

Who this is for

  • For web/mobile apps and sites with forms and payments.

Keyword (SEO)

  • application monitoring metrics

Must-have metrics

  • Uptime
  • p95 latency
  • 4xx/5xx errors
  • CPU/RAM usage

Alerts

  • 5xx spike alert
  • Timeout alert
  • DB connection errors alert

Logs & traces

  • Context-rich logs
  • Request tracing
  • Correlation with deploys

Want this implemented for your business?

About the author

Developer at DevStudio.it. Focused on performance, SEO and production-ready web apps.

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