Custom alerts and data visualization let you quickly identify and prevent IIS application and web server issues.
Most companies depend on a high-performing, always available website, whether it means sales, customer acquisition, or customer care. No company can afford long response times or failures of its internet presence without risking serious losses.
IIS monitoring with Paessler PRTG helps secure your company website’s optimal performance by detecting malfunctions and warning you quickly so you can eliminate the problem and avoid costly downtime.
A ping to the website measures its response time – however, this does not necessarily indicate anything vital about the actual user experience.
PRTG monitors far more, such as the loading time of the source code or even the complete website including all content. It can also simulate logon or purchase processes.
If your company operates internationally, accessibility of an IIS web server in the U.S. does not mean that customers from Europe or Asia have fast access.
PRTG allows monitoring of the web page from globally distributed locations. This goes beyond informing you that something is wrong and helps you figure out what is not working properly.
Many applications, such as IIS web servers and databases, also have a great impact on the performance of a website.
PRTG monitors everything at a glance – from web application performance to the health and availability of the underlying server hardware to load balancers that control data streams.
With "classic" web page monitoring, the problem occurs and then you have to search for the cause of the problem. But PRTG reverses that.
Instead of reacting to existing problems, it alerts you before problems occur to empower you to proactively address the issue, making it easier to troubleshoot and saving costs.
Diagnose network issues by continuously tracking the availability and performance of IIS web servers, applications, and IIS logs. Show response times, web service status, CPU usage, execution time, uptime, and other key metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to troubleshoot all issues with Microsoft IIS servers and applications that rely on them.
Device tree view of the complete monitoring setup
Custom PRTG dashboard for keeping an eye on the entire IT infrastructure
Live traffic data graph in PRTG
“All-around winning
network monitor”
“The real beauty of PRTG is the endless possibilities it offers”
“PRTG Network Monitor
is very hard to beat”
PRTG includes all functions for direct monitoring of your IIS servers, applications, and website, plus features for monitoring your entire network.
PRTG comes with more than 250 native sensor types for monitoring your entire on-premises, cloud, and hybrid cloud environment out of the box. Check out some examples below!
The Windows IIS Application sensor monitors a Microsoft Internet Information Services (IIS) server via Windows Management Instrumentation (WMI). It can also monitor applications that use IIS, such as Microsoft SharePoint or Microsoft Reporting Services (SSRS). It can show the following and more:
The PerfCounter IIS Application Pool sensor monitors a Microsoft Internet Information Services (IIS) application pool via Windows performance counters. It can show the following:
The WMI Service sensor monitors a Windows service. It can show the following:
The SNMP Windows Service sensor monitors a Windows service. It can show the following:
See the PRTG Manual for a list of all available sensor types.
Custom alerts and data visualization let you quickly identify and prevent IIS application and web server issues.
PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.
“Excellent tool for detailed monitoring. Alarms and notifications work greatly. Equipment addition is straight forward and server initial setup is very easy. ...feel safe to purchase it if you intend to monitor a large networking landscape.”
Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.
Combining PRTG’s broad monitoring feature set with IP Fabric’s automated network assurance creates a new level of network visibility and reliability.
Paessler and Plixer provide a complete solution adding flow and metadata analysis to a powerful network monitoring tool.
With ScriptRunner Paessler integrates a powerful event automation platform into PRTG Network Monitor.
Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.
Network Monitoring Software – Version 25.2.106.1114 (May 05th, 2025)
Download for Windows and cloud-based version PRTG Hosted Monitor available
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IIS, or Internet Information Services, is a flexible, secure, and manageable web server developed by Microsoft. It is used to host websites, services, and applications on the Windows operating system. IIS supports various protocols, including HTTP, HTTPS, FTP, FTPS, SMTP, and NNTP, making it a versatile platform for web hosting and communication. Typical use cases include hosting static and dynamic websites, running web APIs and microservices, providing content delivery for applications, enabling secure file transfers via FTP/FTPS, and supporting enterprise applications, including SharePoint and Microsoft Exchange.
IIS monitoring refers to the process of observing, analyzing, and managing the performance, availability, and health of an Internet Information Services (IIS) web server and the applications it hosts. Monitoring IIS helps ensure that websites and services are running efficiently, errors are minimized, and potential issues are detected before they impact users. Key aspects of IIS monitoring include:
Regular IIS monitoring is essential for maintaining the reliability and effectiveness of web applications hosted on IIS servers:
In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, for example the traffic of a switch port, the CPU load of a server, or the free space on a disk drive. On average, you need about 5-10 sensors per device or one sensor per switch port.
Paessler conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins. The result of the survey: over 95% of the participants would recommend PRTG – or already have.
Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.
Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.
Everyone has different monitoring needs. That’s why we let you try PRTG for free.
