Custom alerts and data visualization let you quickly identify and prevent slow and unresponsive web servers and applications and other web server issues.
CPU usage spikes and bottlenecks can hurt application performance and reduce load times. Paessler PRTG's web server monitoring provides robust performance monitoring, tracking CPU load, memory usage, disk space, and more in real time. PRTG monitoring software pinpoints performance metrics that count.
No more stressing over missed alerts. PRTG sends notifications via SMS, email, Slack, and other methods, which are triggered when your custom thresholds are reached. Lost an SSL cert? Weird DNS or TCP troubles?
PRTG squashes outages with proactive uptime monitoring and instant fixes for the root cause of the problem. Say "hello" to stable web server performance and "goodbye" to sleeping under your desk.
Network monitoring gives you that perfect flow of network traffic you crave. PRTG serves more than just web servers – it's an infrastructure monitoring feast.
Do your web applications or SaaS tools need a boost? PRTG checks endpoints, measures bandwidth, validates SSL certificates, and ensures premium functionality. From Microsoft environments to VMware-powered virtual machines, this is your secret weapon.
Sudden traffic surges and busy seasons can crash your web server, but PRTG flexes as you grow so you can relax. Use integrations to blend monitoring into your favorite platforms and adapt to tricky server health scenarios.
Add web servers, dive into application monitoring, or experiment with open-source goodies. PRTG keeps performance solid, downtime low, and your coffee intake optional.
Open-source software, a complex array of specialized speed test tools, or PRTG all-in-one monitoring software? The choice should be easy. PRTG is a centralized tool that identifies, measures, and tests all the important data in your network, saving you time and stress.
You can also access historical data on bandwidth consumption over longer periods of time, and use the built-in reporting system to create custom reports.
Diagnose network issues by continuously tracking the availability, health, and performance of your web servers. Show CPU load, uptime, request processing, user access, bandwidth utilization, 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 slow and unresponsive websites, and other web server issues.
Device tree view of the complete monitoring setup
Custom PRTG dashboard for keeping an eye on the entire IT infrastructure
PRTG real-time website monitoring with mapped web server insights
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”
Whether on Windows or Linux operating systems, on-premises, cloud-based on AWS or Azure, or on virtual machines, PRTG helps you optimize your IT infrastructure. Embrace web server monitoring that makes your websites and online stores feel like home.
Catch performance issues early. See response time quirks, track funky application monitoring behavior, and prevent downtime so your end users stay delighted.
Thanks to PRTG’s API and robust integrations, pairing PRTG with custom scripts and internet service providers is a breeze. Kick off automation workflows and watch your staff do celebratory cartwheels.
With real-time insights, you'll banish outages to the dustbin. PRTG's monitoring solution makes uptime the norm, not the exception, ensuring your web servers never go AWOL.
Okay, maybe it's not fun, but it's definitely easy to use. PRTG is no ordinary monitoring software – it's a scalable, user-friendly maestro of observability. Monitor server metrics, perform DNS checks, and bask in the glory of reliable website monitoring.
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 HTTP Apache ModStatus PerfStats sensor monitors performance statistics of an Apache web server via mod_status over HTTP. It can show the following:
The HTTP Apache ModStatus Totals sensor monitors the activity of an Apache web server using mod_status over HTTP. It can show the following:
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:
See the PRTG Manual for a list of all available sensor types.
Custom alerts and data visualization let you quickly identify and prevent slow and unresponsive web servers and applications and other web server issues.
PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.
Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.
IT that works constitutes a business-critical basis for a company's success. Availability and security must be defined for the respective purpose and closely monitored – by OT and IT alike.
Integrating monitoring results from PRTG into NetBrain maps makes the foundation for network automation.
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
English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese
Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more
Choose the PRTG Network Monitor subscription that's best for you
A web server is a software or hardware system that serves content to users over the web. Its primary role is to deliver web pages and other web resources to clients (like web browsers) when requested, typically through the Hypertext Transfer Protocol (HTTP).
Examples of web server software:
Web server monitoring is the backstage pass to your website. Websites, applications, and services running on your server stay online, fast, and secure. Monitor server metrics like memory usage, uptime, disk space, network traffic, CPU, and even SSL certificate health in real time, and catch performance issues before anyone notices them. With PRTG's monitoring solution, you get a heads-up if response time drags, ensuring a great user experience, top-notch server performance, and minimal downtime.
Web server monitoring ensures your server is online, fast, and secure. Without it, you’re flying blind – only finding out about problems when your users do. With a tool like PRTG, you get 24/7 visibility, instant alerts, and the power to keep your server healthy, fast, and running smoothly.
If you want to avoid surprise outages, prevent slowdowns, and keep your users happy, web server monitoring is a must. Don’t wait for users to tell you something’s broken – know it before they do.
PRTG comes with out-of-the-box monitoring for Apache web servers and Microsoft IIS. With its custom sensors and API requests, however, you can practically monitor every web server you can think of. For NGINX web server monitoring, for example, you can find a how-to guide in our Knowledge Base.
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.
