PRTG: Finally, a network monitoring tool Effortless and powerful! ”

PRTG: Finally, a network monitoring tool Effortless and powerful! ”

PRTG is a network monitoring tool that you can use to monitor your network

Using PRTG, you can monitor the health of your computer network and ensure that there are no outages.

Knowing the bandwidth and resource consumption of your network is also important for increasing your network's efficiency.

PRTG is Paessler's powerful and widely used free network monitoring software, which has over 500,000 installations.

PRTG fits any budget and grows as your needs do. See how PRTG Network Monitoring Tool can improve your network's reliability and simplify your tasks by downloading it for free now.

A single installer contains everything you need. No additional downloads are necessary.

Now and in the future, we make it simple for you!


Optimising your network infrastructure with PRTG

If you want to:

  • Avoid losses resulting from undetected system failures.
  • Buy bandwidth and hardware based on actual usage.
  • Reduce server performance problems and bandwidth bottlenecks.
  • Proactively improve the quality of service.

Current status of your complete network


Our network monitoring tools must meet these requirements

An effective network monitor should be easy to install and easy to use, so that there is no need for external consultancy and training. Other requirements include:

  • Web, PocketPC, and Windows clients for remote management
  • Outage notifications by email, ICQ, pager/SMS, and more.
  • A comprehensive selection of sensor types
  • Monitoring multiple locations
  • There should be support for all common methods of network usage data collection (SNMP, Packet Sniffing, XFlow, IPFIX).

PRTG Device tree


Using Paessler's free network monitoring software, you can optimize your network and prevent system downtime

A continuous network and server monitoring program allows you to identify problems and resolve them before they become a serious threat to your business. Our software helps you:

  • You should avoid bandwidth and server performance bottlenecks
  • Proactively provide better service to your users
  • Reduce costs by buying bandwidth and hardware according to actual usage
  • Avoid losses due to undetected system failures to increase profits
  • As long as you don't hear from PRTG by email, SMS, pager, etc. you can have peace of mind that everything is running smoothly and you can take care of other important business.

100 sensors are included in the free version of PRTG. Each monitoring entity requires one sensor. For example, one sensor monitors one network service, one URL, one network connection, one port of a switch, one NetFlow export stream, or one CPU load or disk drive.

Therefore, if you are interested in a free bandwidth controller, port sniffer, or a tool for monitoring a Windows server or a web site, PRTG is the right free network monitoring software for you. The PRTG firewall is easy to set up, configure, and use. After downloading the installer, using the install wizard, and setting up your sensors with auto-discovery, you are ready to watch network activity, downtime of network devices or services, CPU load, and much more.

Monitoring a larger IT infrastructure requires more sensors? Learn more here.

Our commercial licenses can be downloaded for free for a 30-day trial period. It includes unlimited sensors.

Free network monitoring

Most system administrators choose free network monitoring software if only for the convenience of not having to get a budget approved by their supervisors. What you get with our monitoring tool is:

  • Permanent freeware monitoring
  • 100 free sensors
  • with free alarms and reports
  • tailored to your company's needs

With the freeware version of PRTG, you can start monitoring your network within minutes. Using our Auto Discovery feature, all the devices within a particular IP range are discovered and automatically incorporated into your monitoring environment.

Windows network monitoring tool

It is likely that your IT infrastructure runs on Windows. Congratulations! PRTG was designed specifically for Windows. PRTG uses Windows Management Instrumentation (WMI), performance counters, and SNMP among other things. Among these things are:

  • System Uptime (Windows)
  • CPU load on Windows
  • Management Instrumentation
  • free disk space
  • Microsoft SQL Server WMI
  • Monitoring Windows Security
  • Monitoring Windows Event Logs
WMI Service Sensor

What should I monitor?

Implementing a network monitor is not enough. Monitoring a network in real time depends on ensuring that the selected tool is configured to track what are essentially the network's vital signs: availability, speed and usage.
In addition to monitoring network availability, you can determine whether mail servers and leased lines are working both internally and externally.
Through bandwidth monitoring, your website and network services prevent visitors from leaving and users from becoming frustrated as a result of slow-loading pages, files, or images.
Finally, usage monitoring lets you determine the CPU load and find out what type of work the servers are doing throughout the day.
Adding new sensors in the network monitoring tool


General network status

All you need to check the status of your entire network is a quick glance with PRTG. You can go about your other tasks with confidence knowing that PRTG gives you peace of mind. You will be notified immediately if a device malfunctions or its status changes, so you can take immediate action.

Network devices

There are countless different devices on large networks, each made by a different manufacturer. Examples include switches, servers, workstations, and routerMonitoring tools can only monitor certain manufacturers' devices, while others require expensive add-ons, for example, to monitor Cisco devices.es. PRTG has sensors for monitoring almost every manufacturer's device.

Monitor network traffic

PRTG is the perfect tool for monitoring network traffic. The tool tells you which applications, connections, and data types strain your network the most. The PRTG alarm is triggered immediately when disruptions or overloads occur. 

Overview of network monitoring tools

Why do you need network monitoring?

After a network reaches a certain size, it makes sense to monitor it permanently. Downtime and malfunctions can adversely affect the performance of the entire business. IT managers are also increasingly stressed. When they must act quickly, they don't always know what the problem is. PRTG helps IT managers gain a better understanding of their network.

What does “a certain size” mean exactly?

PRTG is used by companies of all sizes, including those with a few dozen employees and those with several thousand employees. Licensing is based on the number of sensors required. Sysadmins of smaller networks can also rest easy with our software. 
Can you monitor individual devices such as a router or a switch?
The devices PRTG monitors can be chosen by you. Your monitoring scope can also be defined by you. You can choose to monitor only the CPU, free disk space, or specific ports, for example.

How does monitoring work?

You can create sensors for each of the devices you wish to monitor with our software. PRTG receives monitoring data from these sensors. Watch the video below for more information.