Application Monitoring that finds
what you can't see in charts.

Scout continually tracks down N+1 database queries, sources of memory bloat, performance abnormalities, and more.
Get back to coding with Scout.

Scout speaks

PHP,and

Already using an APM product? See this walkthru showing how much time you'll save investigating latency spikes with Scout.

A focused, clutter-free UI

Scout is easy-to-navigate for everyone on your engineering team, highlighting performance problems and filtering out the noise.

Easy install

Whether monitoring a Rails app, a Django app, or an Elixir app, just require our library and deploy. There's no separate agent to configure.

Affordable, flexible pricing

Scout is almost always more affordable than traditional APM services. With integrated transaction sampling support, you can tune your bill to your budget.

Trusted by thousands of engineers at leading-edge companies.

Start your 14-day trial

"We liked New Relic but we love Scout!" - Aaron Scruggs, VP of Engineering, AcademicWorks

Deep Instrumentation.

Transaction Traces

Our agent instruments the dependencies you'd expect (database queries, HTTP calls, template rendering, etc.) and a number of not-so-common dependencies as well.

Scout's tracing logic ties bottlenecks to source code, eliminating guess work. Instrumentation is combined with our one-of-kind profiler, ScoutProf, to profile your app's custom code without complex custom configuration.

Identifies the source of database and memory woes.

Performance Insights

Every stack frame of every trace is analyzed for memory bloat, slow database queries, trending poor performance, and more. The results are aggregated together and presented on your dashboard.

Scout works to identify critical problems that can't be detected with the human eye.

Low overhead & high fidelity tracing.

The Agent

Our monitoring agent uses just a portion of the resources of existing app monitoring agents while providing higher-fidelity trace details.

The secret to low overhead? Our tracing algorithm. Our agent does more work on anomaly requests and decreases analysis on faster areas of your application code.

View more details on our performance benchmarks and the actual tests on GitHub.

What else can you do with Scout?

See how performance looks for a 🙆‍specific user with Trace Explorer

Profile your app in development with DevTrace

Alert your team of capacity and performance issues

Identify 🐢slow, frequently-used database queries

Compare performance between deploys with Deploy Tracking

Stay updated on performance trends and outliers with the 📰Digest Email

View your perf+error data in one place with our Rollbar and Sentry integrations

Send your 📈performance metrics to StatsD-compatible systems with scout_statsd

Identify if background jobs are spending too long in the queue

Ready to try Scout?

It's safe to run Scout alongside your existing APM library.

"Today's performance issues are nuanced and time-consuming to investigate. Scout is how we get our time back."

Andres Barcenas, Senior DevOps Engineer, MDLIVE