Real-time monitoring: Improve
your network performance

  • PRTG monitors all your network components in real time
  • Keep a constant eye on servers, VMs, hardware, and Cloud services
  • PRTG displays monitoring data on an easy-to-read dashboard
  • PRTG real-time monitoring helps you improve the performance of your network


Why is real-time monitoring so important?

Optimize the performance and availability of your IT systems with real-time monitoring

Internet availability

Today, more than ever, companies rely on their Internet connection being always up and running. At the same time, they look to their network for functionality and performance. An ever increasing amount of goods and services are being purchased online. If one of your systems is down, it can not only impair business processes, but also affect sales. It is therefore vital that companies be informed immediately when malfunctions or performance snags arise.

Real-time monitoring with PRTG

By monitoring your network in real time, you’ll be sure to always know what is going on inside it. The PRTG Network Monitor captures all the traffic in your network, monitors the availability of servers, and measures key performance parameters such as bandwidth, CPU load, and the efficiency of virtual machines.

How real-time monitoring with PRTG works

The PRTG Real-Time Monitoring Tool uses all the best-known monitoring protocols to offer you data in real time. With PRTG, you can use SNMP, packet sniffing, and NetFlow to measure bandwidth consumption. SNMP is the most widely-used method, and provides an overview of all networktraffic. You can also keep an eye on the data of individual ports. Another advantage: SNMP is extremely easy to configure. Learn more here.

Packet Sniffing is ideal for obtaining an in-depth analysis of your network traffic. It allows for traffic to be filtered by a variety of different values, such as IP addresses, protocols, or MAC addresses.

Flow-technologies such as NetFlow and IPFIX, jFlow and sFlow also offer extensive filtering possibilities – and compared to packet sniffing put less of a strain on your CPU. Which Flow protocol should you use? It all depends on the network device you want to monitor.

WMI is used for the real-time monitoring of Microsoft servers and workstations. With WMI, you get access to a variety of Windows-performance-data , such as CPU load, memory capacity, and data traffic on the network interface card.

PRTG has a command of all these protocols, and arranges the data on easy-to-read dashboards.

Traffic monitoring: A comparison of WMI, SNMP, packet sniffing, and NetFlow


How would you like to implement your bandwidth monitoring? In addition to WMI, PRTG offers SNMP monitoring and NetFlow-monitoring . Each of these options has its pros and cons. For a summary:

PRTG - Bandwidth Monitoring SNMP and WMI

PRTG – Bandwidth monitoring with SNMP and WMI

by Kimberley, Product Evangelist

In this video, we’ll show you how PRTG uses SNMP and WMI to help you keep a constant eye on your bandwidth.

View video (14:48 min.)





Packet Sniffer

xFlow (IPFIX, NetFlow, sFlow, jFlow)




Easy to complex (depending on filter rules used)

Can be complex (e.g., the switch must be configured)

Traffic can be filtered





Differentiate bandwidth usage by protocol or IPs





PRTG can show Toplists (Top Talker, Top Connections, Top Protocols, custom)





Filter bandwidth usage by IP





Filter bandwidth usage by MAC address





Filter bandwidth usage by physical network port





Monitor network parameters other than bandwidth usage





CPU load on the machine running PRTG



Higher, depends on the amount of traffic

Higher, depends on the amount of traffic

Excess bandwidth usage of monitoring



None (except when monitoring switch ports are used)

Depends on the traffic

Get a comprehensive look at your network – in real time

PRTG not only monitors bandwidth and network performance in real time, but also provides precious insight into data recorded across the entire network.


PRTG lets you keep a constant eye on the vital data of all your servers, including status, health, and performance. Whether a mail-server, web server, or file server with the comprehensive real-time monitoring of all the key parameters, you’ll immediately know if you’ve run into a glitch.

PRTG helps you to avoid expensive downtime and ensure your servers perform at their peak.


At many companies, virtualization is a crucial part of the IT infrastructure. Virtualization allows for a more efficient use of resources, reduced energy costs, and the flexible distribution of available capacities.

PRTG lets you keep track of host servers and virtual machines, as well as all the operating systems and applications that are running on your VMs. You’ll recognize potential performance problems immediately, and can quickly intervene before customers or co-workers notice something is wrong and call you to complain.


For a network to run smoothly, its hardware must be flawless. Thanks to PRTG, you no longer have to constantly worry about the status of your hardware. Real-time monitoring runs in the background, and promptly notifies you if a problem arises – often before the network goes down completely.


More and more business processes are being stored in the Cloud. PRTG offers a quick overview of several different Cloud services. Easy-to-read dashboards provide all the required information in real time, whether you use Amazon AWS, Microsoft OneDrive, Google Drive, or another Cloud storage service. You can set custom threshold values right in the software. If these values are exceeded, PRTG will automatically send you a message.


An introduction to real-time monitoring with PRTG


Easy-to-read displays and user-defined maps

Secure an overview

It’s easy to get lost in all the various network data and measurements – but not with PRTG! PRTG arranges even large amounts of monitoring data on easy-to-read dashboards, which means you can determine at a quick glance if (and which) network elements require your attention.

Map Designer

PRTG offers a variety of standard views, and also lets you create custom ones. Take advantage of the Map Designer to design sleek charts for your monitoring data on the fly, or create your own libraries and have the information displayed the way you need it.

Over 95% of our customers recommend PRTG


Paessler AG worldwide trialled PRTG in over 600 IT departments.
The aim was to tune the network monitoring software closer to the needs of the administrators.
The result of the survey: over 95% of the participants would recommend PRTG - or already had.

Recommend PRTG

Real-time notifications inform you of problems and errors as they happen

Network disruptions

If your website is down, your virtual machines are performing badly, or any other errors crop up in your network, you need to be told at once. PRTG’s customizable alarm system informs you promptly so you can quickly get to work on the problem. Choose to be notified by email, SMS, or push notification.

Alarm feature

Alarm thresholds can be set to any value whatsoever, which means that most of the time you can stamp out problems before things get serious. For example, you might receive a notification if your router returns an error message, even if the network has yet to experience a disruption. Thanks to PRTG, most errors can be fixed before your co-workers or customers get wind of them.


“We can all work with greater peace of mind knowing that our systems are constantly being monitored.”

Markus Puke, Network Administrator, Schüchtermann Klinik, Germany.


Monitor your network in real time
– even while on the go

PRTG can be started within minutes and it's compatible with many mobile devices.


PRTG comes with all the features you need, plus more your IT infrastructure won't want to live without.


PRTG monitors these vendors and applications, and more, in one view!


PRTG makes your job easier!

Let our real-time monitoring software keep an eye on your network for you.
And gladly use the freed-up resources to get other stuff done.

PRTG saves time

PRTG is a comprehensive real-time monitoring tool. Our dashboard and app provide a comprehensive overview of your entire network.

PRTG saves worry

PRTG lets you monitor your network both conveniently and around the clock – in real time. Its built-in alarm function will notify you in the event of problems, thereby helping you save on maintenance costs. And that will make everyone happy.


PRTG saves money

PRTG is worth it. 80% of our customers report substantial savings in the area of network management. And license costs pay for themselves in an average of a few weeks. 

Award winning solution

We work hard on making our software as powerful and easy-to-use
as possible for our customers each and every day.
Of course it makes us proud when we get awards for that.



PRTG: The swiss army knife for sys admins

Adapt PRTG individually and dynamically to your needs relying on a strong API:

  • HTTP API: Access monitoring data and manipulate monitoring objects using HTTP requests
  • Custom Sensors: Create your own sensors for customized monitoring
  • Custom Notifications: Create your own notifications to send alarms to external systems
  • New REST API Sensor: Monitor almost everything that provides XML or JSON


Made in Germany: The PRTG Network Monitoring Tool is the fruit of an engaged team. The company was founded by Dirk Paessler. The PAESSLER AG headquarters are located in the city of Nuremberg, in the heart of Germany. We combine typical German virtues such as high quality standards, industriousness, and commitment with international, cosmopolitan flair. Read more about our firm here. By the way: We are regularly looking for new recruits.

Case Studies: Airports, utility companies, banks, colleges, hospitals: PRTG is present in every industry. For each of our customers, business and organizational processes depend on the proper functioning of the network infrastructure. The PRTG customer satisfaction is close to 100%. Read in our case studies how our customers use PRTG.

Product tests: It goes without saying that we are convinced by the quality of PRTG. But what about the others? PRTG has always performed extremely well in tests. PRTG user “LanLine” sums it up best: “PRTG was already good several years ago, and has gotten better from version to version ever since.” Such has been our steadfast and sincere goal. Read more about monitoring software product tests and comparisons here.

Support: Our support team works hard every day to help customers solve their monitoring problems. Our goal is to resolve all inquiries within 24 hours (on business days). We've drafted a comprehensive manual and built up an extensive knowledge base featuring videos, webinars, and FAQs. All support, of course, is also included!

Getting started is easy: The trial version is free, which means you can try our monitoring tool risk-free. To switch to another version of PRTG, simply search for an appropriate license. You can upgrade any time you like.



Network Monitoring Software - Version (March 7th, 2018)


Download for Windows and hosted version available


English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese


Up to 100 sensors for free (Price List)

Unified Monitoring

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more...

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