Microsoft IIS integration

The IIS integration provides web server monitoring for Microsoft IIS, including application pool health.


What it’s for	Monitoring web traffic, requests, connections, and application pools
Who uses it	Windows administrators, .NET developers, DevOps teams running IIS
Under the hood	Uses Windows performance counters alongside the Windows integration

Metrics collected

Requests — Rate, active, queued
Connections — Current, total
App pools — Worker process, memory, CPU
Bytes — Sent, received, total

Trade-offs

Best for: Windows IIS web servers, .NET web applications

Pros	Cons
Pre-built dashboards: IIS overview, app pools	Windows-only
Pre-built alerts: request queue, app pool health	Requires performance counter access
Works alongside Windows integration	Limited compared to APM tools

Documentation

View the full documentation. Learning path coming soon!

Microsoft IIS integration

If you’re running web applications on Windows, IIS is likely your web server, and this integration gives you the visibility you need. It collects metrics through Windows performance counters, the same mechanism Windows itself uses, so you’re getting authoritative data.

Request rates, active connections, bytes transferred, response times.

Application pool monitoring is where this integration really shines. IIS isolates applications in pools, and each pool can have its own problems. You need visibility into worker process health, memory usage, and resource consumption per pool.

Request queue length is a critical metric: when it grows, IIS can’t keep up with incoming traffic, and users experience delays.

The integration typically runs alongside the Windows integration. You get host-level metrics from Windows and web server metrics from IIS together, giving you the complete picture.

For .NET applications, this provides the web tier visibility that complements your application performance monitoring.

And the dashboards use IIS terminology, so Windows administrators feel right at home.

Microsoft IIS integration