Get started with LeanSentry
See how LeanSentry's lightweight monitoring and expert Just-In-Time diagnostics help you capture and correctly diagnose application performance issues.
Diagnose IIS website hangs
How to use LeanSentry Hang diagnostics to quickly identify and diagnose website hangs, including identifying the correct application code causing the hang.
Diagnose w3wp.exe high CPU usage
How to use LeanSentry CPU diagnostics to quickly detect and diagnose high CPU usage in the IIS worker process.
Diagnose w3wp.exe high memory usage
Diagnose high memory usage in the IIS worker process using LeanSentry Memory diagnostics. Tune .NET memory usage down to code to quickly and definitively resolve memory leaks.
Fix IIS, ASP.NET, ASP and Http.sys errors
Identify severe and actionable errors across your entire IIS, ASP.NET, and Http.sys web stack. Diagnose complex errors like 503s down to code, and even debug hard-to-reproduce production errors in Visual Studio.
Diagnose async hangs in ASP.NET Core, MVC and WebAPI
Diagnose async hangs in ASP.NET Core, MVC and WebAPI applications, using the async analysis inside LeanSentry Hang diagnostics.
Using LeanSentry to monitor restricted environments
Learn how to deploy LeanSentry in environments with security restrictions, and locked-down servers with no internet access. Explore the self-hosted LeanSentry OnPremise option for complete data privacy.
Self-hosted diagnostics with LeanSentry OnPremise
LeanSentry OnPremise offers a self-hosted diagnostic solution for locked-down environments.
Start diagnosing faster with help from our performance engineers
Get the fastest results from LeanSentry with a help from one of our performance engineers.
Diagnostic support plans
Experiencing downtime or severe business impact? Use our proven priority issue resolution process to rapidly resolve critical performance issues.
Answers to the big IIS and ASP.NET performance questions
Our answers to the top performance questions asked by LeanSentry customers.
Configure LeanSentry for best monitoring and diagnostic results
Here is how to use LeanSentry's data quaity wizard to get the best monitoring and diagnostics for your specific environment.