find and fix:
- Slow requests
- Lock contention
- Classic ASP
- and more ...
Used by 10,000+ companies to solve real performance issues.
See what you've been missing.
Deeper insight into IIS & ASP.NET performance
See how IIS & ASP.NET performance affects your workload. Understand concurrency limits, threading issues, and queueing. Diagnose slow requests and website hangs down to code.
Find and fix errors across entire server stack
Track errors across your entire stack, including your server, IIS, ASP.NET, and your application. Give your developers the details they need to fix errors quickly.
Optimize .NET performance
Tune memory usage
Troubleshooting memory leaks in production can be incredibly hard.
LeanSentry automatically tracks memory leaks, and helps you proactively tune your app's memory usage.
- See exactly where memory was allocated.
- Understand how .NET Garbage collection affects your performance.
- Track .NET memory usage down to code.
Tune CPU usage
Troubleshoot high CPU usage, or reduce your app's CPU overhead to save your server costs.
- Near-continuous CPU usage history down to application code.
- Low overhead with no heavy profilers.
Track down performance regressions and validate improvements, without doing extensive performance testing.
You are going to like this.
Deploy in 5 minutes. No iisreset. Runs safely alongside other APMs.
Quickly track health and performance.
Get full request traces for errors and slow requests. Log custom data into the trace.
Reduce Testing Costs
Save time and get better results: let your developers tune performance in production.
Get notified on slow pages, errors, low memory, high CPU, and more.
Identify Slow Code
Identify slow functions blocking requests, down to line of code.
Boost App Performance
Expert insight makes it easier for your team to improve and maintain high performance.
Get the Evidence
Is the server or the code? We'll tell you. Simply link your teammates to the evidence.
Go Straight to Fixing
Get the full info on issues: stack traces, CPU trees, memory graphs. No guessing, setting up repros, and production debugging.
Slash Server Costs
Because tuning CPU and memory is so easy, you can reduce your footprint and run it with fewer servers in no time.
Deploy LeanSentry to your servers, and view diagnostics in minutes on our online dashboard.
Deploy and start diagnosing in 5 minutes.
Host the entire LeanSentry stack in your environment.
Our customers say
In the first 3 weeks of use, we resolved 3 production issues affecting performance and availability. LeanSentry is now our go to tool for insight into how our applications are running.
Platform Architect, OrderDynamics
Great product & company to work with. Ex MS guys who know IIS and the MS stack. You work with the team directly, not a customer care layer. LeanSentry uncovers things in minutes vs. days of digging.
Operations Manager, Pacific DataVision
I have not seen a service that provides so much information with so little setup. LeanSentry made it simple to diagnose errors and slowdowns, and gave us a way to measure our success in resolving application issues.
Web Developer, InfoTrack
We were seeing severe hangs on our ASP.NET site.
Looked at what LeanSentry said was the cause of the hang,
disabled that code, and it’s been smooth sailing since.
CEO, Progressive Media