Application Performance Monitoring

Scout's simple and intuitive UI helps you detect and resolve performance issues — fast.

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Digest Emails

Receive daily or weekly digest emails summarizing how your apps are performing, along with highlights of outliers and endpoints which may need developer attention.

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Next Level APM

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Scout calculates the memory increase caused by web or background jobs, surfacing the exact transactions leading to memory bloat. Scout also tracks object allocations so you can work to minimize or eliminate unnecessary overhead within your application.


Active Record makes database ORM super easy. But it also makes it extremely easy for N+1 queries to slip in to your code. Scout has you covered by detecting N+1 queries and even listing how much time you could save by fixing them.


Attach custom data for context to the requests tracked by Scout. Use our Trace Explorer to search and filter based on that data.


Scout collects detailed traces of slow requests and, along with our GitHub integration, shows you the exact line of code responsible for the slow response time.